51436102188427 has 4 divisors (see below), whose sum is σ = 56112111478296. Its totient is φ = 46760092898560.

The previous prime is 51436102188347. The next prime is 51436102188431. The reversal of 51436102188427 is 72488120163415.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51436102188427 - 2⁷ = 51436102188299 is a prime.

It is a super-2 number, since 2×51436102188427² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51436102180427) 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, 2338004644918 + ... + 2338004644939.

It is an arithmetic number, because the mean of its divisors is an integer number (14028027869574).

Almost surely, 2^{51436102188427} is an apocalyptic number.

51436102188427 is a deficient number, since it is larger than the sum of its proper divisors (4676009289869).

51436102188427 is a wasteful number, since it uses less digits than its factorization.

51436102188427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4676009289868.

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 51436102188427 in words is "fifty-one trillion, four hundred thirty-six billion, one hundred two million, one hundred eighty-eight thousand, four hundred twenty-seven".