77326163432 has 24 divisors (see below), whose sum is σ = 168657831810. Its totient is φ = 33139784160.

The previous prime is 77326163429. The next prime is 77326163503. The reversal of 77326163432 is 23436162377.

It can be written as a sum of positive squares in only one way, i.e., 55589379076 + 21736784356 = 235774^2 + 147434^2 .

It is a super-2 number, since 2×77326163432² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 98629919 + ... + 98630702.

Almost surely, 2^77326163432 is an apocalyptic number.

It is an amenable number.

77326163432 is an abundant number, since it is smaller than the sum of its proper divisors (91331668378).

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

77326163432 is a wasteful number, since it uses less digits than its factorization.

77326163432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197260641 (or 197260630 counting only the distinct ones).

The product of its digits is 762048, while the sum is 44.

The spelling of 77326163432 in words is "seventy-seven billion, three hundred twenty-six million, one hundred sixty-three thousand, four hundred thirty-two".