385503671872 has 28 divisors (see below), whose sum is σ = 834527836656. Its totient is φ = 175228941440.

The previous prime is 385503671869. The next prime is 385503671873. The reversal of 385503671872 is 278176305583.

It is a super-2 number, since 2×385503671872² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (385503671873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273794518 + ... + 273795925.

Almost surely, 2^385503671872 is an apocalyptic number.

385503671872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

385503671872 is an abundant number, since it is smaller than the sum of its proper divisors (449024164784).

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

385503671872 is a wasteful number, since it uses less digits than its factorization.

385503671872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547590466 (or 547590456 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 55.

The spelling of 385503671872 in words is "three hundred eighty-five billion, five hundred three million, six hundred seventy-one thousand, eight hundred seventy-two".