78313574032 has 60 divisors (see below), whose sum is σ = 155624799420. Its totient is φ = 38176561408.

The previous prime is 78313574029. The next prime is 78313574039. The reversal of 78313574032 is 23047531387.

It can be written as a sum of positive squares in 2 ways, for example, as 24231280896 + 54082293136 = 155664^2 + 232556^2 .

It is a super-2 number, since 2×78313574032² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78313574032.

It is not an unprimeable number, because it can be changed into a prime (78313574039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9503418 + ... + 9511654.

It is an arithmetic number, because the mean of its divisors is an integer number (2593746657).

Almost surely, 2^78313574032 is an apocalyptic number.

It is an amenable number.

78313574032 is a deficient number, since it is larger than the sum of its proper divisors (77311225388).

78313574032 is a wasteful number, since it uses less digits than its factorization.

78313574032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8608 (or 8555 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 78313574032 in words is "seventy-eight billion, three hundred thirteen million, five hundred seventy-four thousand, thirty-two".