214578791432 has 16 divisors (see below), whose sum is σ = 403708396140. Its totient is φ = 106923219136.

The previous prime is 214578791431. The next prime is 214578791437. The reversal of 214578791432 is 234197875412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 183720247876 + 30858543556 = 428626^2 + 175666^2 .

It is a super-2 number, since 2×214578791432² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (214578791431) 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, 45769583 + ... + 45774270.

Almost surely, 2^214578791432 is an apocalyptic number.

It is an amenable number.

214578791432 is a deficient number, since it is larger than the sum of its proper divisors (189129604708).

214578791432 is a wasteful number, since it uses less digits than its factorization.

214578791432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91544152 (or 91544148 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 53.

The spelling of 214578791432 in words is "two hundred fourteen billion, five hundred seventy-eight million, seven hundred ninety-one thousand, four hundred thirty-two".