77531032458 has 48 divisors (see below), whose sum is σ = 183363950016. Its totient is φ = 23480305920.

The previous prime is 77531032429. The next prime is 77531032459. The reversal of 77531032458 is 85423013577.

77531032458 is a `hidden beast` number, since 7 + 7 + 5 + 310 + 324 + 5 + 8 = 666.

It is a super-2 number, since 2×77531032458² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (77531032459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 220635 + ... + 451377.

It is an arithmetic number, because the mean of its divisors is an integer number (3820082292).

Almost surely, 2^77531032458 is an apocalyptic number.

77531032458 is an abundant number, since it is smaller than the sum of its proper divisors (105832917558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77531032458 is a wasteful number, since it uses less digits than its factorization.

77531032458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232459 (or 232456 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 77531032458 in words is "seventy-seven billion, five hundred thirty-one million, thirty-two thousand, four hundred fifty-eight".