385032566891 has 12 divisors (see below), whose sum is σ = 467444384208. Its totient is φ = 310614506112.

The previous prime is 385032566861. The next prime is 385032566903. The reversal of 385032566891 is 198665230583.

It is not a de Polignac number, because 385032566891 - 2²⁶ = 384965458027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385032566861) 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, 95161736 + ... + 95165781.

It is an arithmetic number, because the mean of its divisors is an integer number (38953698684).

Almost surely, 2^385032566891 is an apocalyptic number.

385032566891 is a deficient number, since it is larger than the sum of its proper divisors (82411817317).

385032566891 is a wasteful number, since it uses less digits than its factorization.

385032566891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190327558 (or 190327541 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 56.

The spelling of 385032566891 in words is "three hundred eighty-five billion, thirty-two million, five hundred sixty-six thousand, eight hundred ninety-one".