2137521677 has 8 divisors (see below), whose sum is σ = 2160001536. Its totient is φ = 2115157392.

The previous prime is 2137521671. The next prime is 2137521689. The reversal of 2137521677 is 7761257312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2137521677 - 2¹⁶ = 2137456141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2137521671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8543 + ... + 65939.

It is an arithmetic number, because the mean of its divisors is an integer number (270000192).

Almost surely, 2^2137521677 is an apocalyptic number.

It is an amenable number.

2137521677 is a deficient number, since it is larger than the sum of its proper divisors (22479859).

2137521677 is a wasteful number, since it uses less digits than its factorization.

2137521677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57787.

The product of its digits is 123480, while the sum is 41.

The square root of 2137521677 is about 46233.3394532560. The cubic root of 2137521677 is about 1288.1610873601.

Adding to 2137521677 its reverse (7761257312), we get a palindrome (9898778989).

The spelling of 2137521677 in words is "two billion, one hundred thirty-seven million, five hundred twenty-one thousand, six hundred seventy-seven".