214879378920 has 64 divisors (see below), whose sum is σ = 645904800000. Its totient is φ = 57188575488.

The previous prime is 214879378919. The next prime is 214879378951. The reversal of 214879378920 is 29873978412.

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 1697920 + ... + 1820079.

It is an arithmetic number, because the mean of its divisors is an integer number (10092262500).

Almost surely, 2^214879378920 is an apocalyptic number.

214879378920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214879378920 is an abundant number, since it is smaller than the sum of its proper divisors (431025421080).

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

214879378920 is a wasteful number, since it uses less digits than its factorization.

214879378920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3518522 (or 3518518 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 60.

The spelling of 214879378920 in words is "two hundred fourteen billion, eight hundred seventy-nine million, three hundred seventy-eight thousand, nine hundred twenty".