78214266765432 has 160 divisors (see below), whose sum is σ = 265095974452320. Its totient is φ = 21032407848960.

The previous prime is 78214266765421. The next prime is 78214266765533. The reversal of 78214266765432 is 23456766241287.

78214266765432 is a `hidden beast` number, since 7 + 8 + 2 + 1 + 4 + 26 + 67 + 6 + 543 + 2 = 666.

It is a super-2 number, since 2×78214266765432² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 78214266765432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 507070069 + ... + 507224292.

It is an arithmetic number, because the mean of its divisors is an integer number (1656849840327).

Almost surely, 2^{78214266765432} is an apocalyptic number.

78214266765432 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

78214266765432 is an abundant number, since it is smaller than the sum of its proper divisors (186881707686888).

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

78214266765432 is a wasteful number, since it uses less digits than its factorization.

78214266765432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014294403 (or 1014294390 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 63.

The spelling of 78214266765432 in words is "seventy-eight trillion, two hundred fourteen billion, two hundred sixty-six million, seven hundred sixty-five thousand, four hundred thirty-two".