77432401275 has 12 divisors (see below), whose sum is σ = 128021570232. Its totient is φ = 41297280640.

The previous prime is 77432401219. The next prime is 77432401283. The reversal of 77432401275 is 57210423477.

It is not a de Polignac number, because 77432401275 - 2⁷ = 77432401147 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 516215934 + ... + 516216083.

It is an arithmetic number, because the mean of its divisors is an integer number (10668464186).

Almost surely, 2^77432401275 is an apocalyptic number.

77432401275 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

77432401275 is a deficient number, since it is larger than the sum of its proper divisors (50589168957).

77432401275 is a wasteful number, since it uses less digits than its factorization.

77432401275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032432030 (or 1032432025 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 42.

The spelling of 77432401275 in words is "seventy-seven billion, four hundred thirty-two million, four hundred one thousand, two hundred seventy-five".