26760782137 has 4 divisors (see below), whose sum is σ = 26900891136. Its totient is φ = 26620673140.

The previous prime is 26760782131. The next prime is 26760782143. The reversal of 26760782137 is 73128706762.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73128706762 = 2 ⋅36564353381.

It is an interprime number because it is at equal distance from previous prime (26760782131) and next prime (26760782143).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26760782137 is a prime.

It is a super-2 number, since 2×26760782137² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26760782131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70054213 + ... + 70054594.

It is an arithmetic number, because the mean of its divisors is an integer number (6725222784).

Almost surely, 2^26760782137 is an apocalyptic number.

It is an amenable number.

26760782137 is a deficient number, since it is larger than the sum of its proper divisors (140108999).

26760782137 is a wasteful number, since it uses less digits than its factorization.

26760782137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140108998.

The product of its (nonzero) digits is 1185408, while the sum is 49.

The spelling of 26760782137 in words is "twenty-six billion, seven hundred sixty million, seven hundred eighty-two thousand, one hundred thirty-seven".