214895978790 has 32 divisors (see below), whose sum is σ = 516027619296. Its totient is φ = 57274786560.

The previous prime is 214895978771. The next prime is 214895978797. The reversal of 214895978790 is 97879598412.

It is a super-2 number, since 2×214895978790² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214895978797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1868727 + ... + 1980386.

It is an arithmetic number, because the mean of its divisors is an integer number (16125863103).

Almost surely, 2^214895978790 is an apocalyptic number.

214895978790 is an abundant number, since it is smaller than the sum of its proper divisors (301131640506).

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

214895978790 is a wasteful number, since it uses less digits than its factorization.

214895978790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3850984.

The product of its (nonzero) digits is 91445760, while the sum is 69.

The spelling of 214895978790 in words is "two hundred fourteen billion, eight hundred ninety-five million, nine hundred seventy-eight thousand, seven hundred ninety".