385288791876 has 36 divisors (see below), whose sum is σ = 981033396252. Its totient is φ = 127492153344.

The previous prime is 385288791863. The next prime is 385288791889. The reversal of 385288791876 is 678197882583.

385288791876 is a `hidden beast` number, since 3 + 8 + 528 + 8 + 7 + 91 + 8 + 7 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (385288791863) and next prime (385288791889).

It can be written as a sum of positive squares in 2 ways, for example, as 250910828100 + 134377963776 = 500910^2 + 366576^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39055165 + ... + 39065028.

Almost surely, 2^385288791876 is an apocalyptic number.

385288791876 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

385288791876 is an abundant number, since it is smaller than the sum of its proper divisors (595744604376).

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

385288791876 is a wasteful number, since it uses less digits than its factorization.

385288791876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78120340 (or 78120335 counting only the distinct ones).

The product of its digits is 325140480, while the sum is 72.

The spelling of 385288791876 in words is "three hundred eighty-five billion, two hundred eighty-eight million, seven hundred ninety-one thousand, eight hundred seventy-six".