732888375921 has 99 divisors (see below), whose sum is σ = 1194803623467. Its totient is φ = 449343994320.

The previous prime is 732888375907. The next prime is 732888375953. The reversal of 732888375921 is 129573888237.

The square root of 732888375921 is 856089.

It is a perfect power (a square), and thus also a powerful number.

732888375921 is a `hidden beast` number, since 7 + 3 + 2 + 8 + 8 + 8 + 37 + 592 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 108415440225 + 624472935696 = 329265^2 + 790236^2 .

It is not a de Polignac number, because 732888375921 - 2¹⁷ = 732888244849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (732888376921) by changing a digit.

It is a polite number, since it can be written in 98 ways as a sum of consecutive naturals, for example, 2704385016 + ... + 2704385286.

Almost surely, 2^732888375921 is an apocalyptic number.

732888375921 is the 856089-th square number.

732888375921 is the 428045-th centered octagonal number.

It is an amenable number.

732888375921 is a deficient number, since it is larger than the sum of its proper divisors (461915247546).

732888375921 is an frugal number, since it uses more digits than its factorization.

732888375921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598 (or 287 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 63.

It can be divided in two parts, 732888 and 375921, that added together give a square (1108809 = 1053²).

The spelling of 732888375921 in words is "seven hundred thirty-two billion, eight hundred eighty-eight million, three hundred seventy-five thousand, nine hundred twenty-one".