214781228620 has 48 divisors (see below), whose sum is σ = 525994862400. Its totient is φ = 73639276032.

The previous prime is 214781228611. The next prime is 214781228729. The reversal of 214781228620 is 26822187412.

It is a super-2 number, since 2×214781228620² (a number of 23 digits) contains 22 as substring.

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, 15647749 + ... + 15661468.

It is an arithmetic number, because the mean of its divisors is an integer number (10958226300).

Almost surely, 2^214781228620 is an apocalyptic number.

214781228620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214781228620 is an abundant number, since it is smaller than the sum of its proper divisors (311213633780).

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

214781228620 is a wasteful number, since it uses less digits than its factorization.

214781228620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31309247 (or 31309231 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The spelling of 214781228620 in words is "two hundred fourteen billion, seven hundred eighty-one million, two hundred twenty-eight thousand, six hundred twenty".