766532078436 has 12 divisors (see below), whose sum is σ = 1788574849712. Its totient is φ = 255510692808.

The previous prime is 766532078407. The next prime is 766532078441. The reversal of 766532078436 is 634870235667.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31938836590 + ... + 31938836613.

Almost surely, 2^766532078436 is an apocalyptic number.

It is an amenable number.

766532078436 is an abundant number, since it is smaller than the sum of its proper divisors (1022042771276).

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

766532078436 is a wasteful number, since it uses less digits than its factorization.

766532078436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63877673210 (or 63877673208 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 57.

The spelling of 766532078436 in words is "seven hundred sixty-six billion, five hundred thirty-two million, seventy-eight thousand, four hundred thirty-six".