77852145430 has 32 divisors (see below), whose sum is σ = 148018387968. Its totient is φ = 29435464800.

The previous prime is 77852145409. The next prime is 77852145457. The reversal of 77852145430 is 3454125877.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2906856 + ... + 2933515.

It is an arithmetic number, because the mean of its divisors is an integer number (4625574624).

Almost surely, 2^77852145430 is an apocalyptic number.

77852145430 is a deficient number, since it is larger than the sum of its proper divisors (70166242538).

77852145430 is a wasteful number, since it uses less digits than its factorization.

77852145430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5840452.

The product of its (nonzero) digits is 940800, while the sum is 46.

The spelling of 77852145430 in words is "seventy-seven billion, eight hundred fifty-two million, one hundred forty-five thousand, four hundred thirty".