77860885622631 has 16 divisors (see below), whose sum is σ = 103986019260384. Its totient is φ = 51821509791744.

The previous prime is 77860885622623. The next prime is 77860885622687. The reversal of 77860885622631 is 13622658806877.

It is not a de Polignac number, because 77860885622631 - 2³ = 77860885622623 is a prime.

It is a super-2 number, since 2×77860885622631² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77860885662631) 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, 60133305 + ... + 61414461.

It is an arithmetic number, because the mean of its divisors is an integer number (6499126203774).

Almost surely, 2^{77860885622631} is an apocalyptic number.

77860885622631 is a deficient number, since it is larger than the sum of its proper divisors (26125133637753).

77860885622631 is a wasteful number, since it uses less digits than its factorization.

77860885622631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314610.

The product of its (nonzero) digits is 325140480, while the sum is 69.

The spelling of 77860885622631 in words is "seventy-seven trillion, eight hundred sixty billion, eight hundred eighty-five million, six hundred twenty-two thousand, six hundred thirty-one".