68012637 has 24 divisors (see below), whose sum is σ = 115081632. Its totient is φ = 35330400.

The previous prime is 68012629. The next prime is 68012639. The reversal of 68012637 is 73621086.

It is not a de Polignac number, because 68012637 - 2³ = 68012629 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 68012598 and 68012607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68012639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19414 + ... + 22647.

It is an arithmetic number, because the mean of its divisors is an integer number (4795068).

Almost surely, 2^68012637 is an apocalyptic number.

It is an amenable number.

68012637 is a deficient number, since it is larger than the sum of its proper divisors (47068995).

68012637 is a wasteful number, since it uses less digits than its factorization.

68012637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42089 (or 42082 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 68012637 is about 8246.9774463133. The cubic root of 68012637 is about 408.1907928783.

The spelling of 68012637 in words is "sixty-eight million, twelve thousand, six hundred thirty-seven".