68607131955 has 16 divisors (see below), whose sum is σ = 111631944960. Its totient is φ = 35970292448.

The previous prime is 68607131953. The next prime is 68607131981. The reversal of 68607131955 is 55913170686.

It is a cyclic number.

It is not a de Polignac number, because 68607131955 - 2¹ = 68607131953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68607131898 and 68607131907.

It is not an unprimeable number, because it can be changed into a prime (68607131953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38760207 + ... + 38761976.

It is an arithmetic number, because the mean of its divisors is an integer number (6976996560).

Almost surely, 2^68607131955 is an apocalyptic number.

68607131955 is a deficient number, since it is larger than the sum of its proper divisors (43024813005).

68607131955 is a wasteful number, since it uses less digits than its factorization.

68607131955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77522250.

The product of its (nonzero) digits is 1360800, while the sum is 51.

The spelling of 68607131955 in words is "sixty-eight billion, six hundred seven million, one hundred thirty-one thousand, nine hundred fifty-five".