2115689937 has 16 divisors (see below), whose sum is σ = 2972156928. Its totient is φ = 1336032720.

The previous prime is 2115689923. The next prime is 2115689941. The reversal of 2115689937 is 7399865112.

It is not a de Polignac number, because 2115689937 - 2¹² = 2115685841 is a prime.

It is a super-2 number, since 2×2115689937² = 8952287819046127938, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2115689937.

It is not an unprimeable number, because it can be changed into a prime (2115689137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141739 + ... + 155952.

It is an arithmetic number, because the mean of its divisors is an integer number (185759808).

Almost surely, 2^2115689937 is an apocalyptic number.

It is an amenable number.

2115689937 is a deficient number, since it is larger than the sum of its proper divisors (856466991).

2115689937 is a wasteful number, since it uses less digits than its factorization.

2115689937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297820.

The product of its digits is 816480, while the sum is 51.

The square root of 2115689937 is about 45996.6296265281. The cubic root of 2115689937 is about 1283.7604942150.

The spelling of 2115689937 in words is "two billion, one hundred fifteen million, six hundred eighty-nine thousand, nine hundred thirty-seven".