7923666432 has 80 divisors (see below), whose sum is σ = 23028204672. Its totient is φ = 2401105920.

The previous prime is 7923666427. The next prime is 7923666469. The reversal of 7923666432 is 2346663297.

It is a happy number.

It is a super-2 number, since 2×7923666432² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217588 + ... + 251379.

Almost surely, 2^7923666432 is an apocalyptic number.

It is an amenable number.

7923666432 is an abundant number, since it is smaller than the sum of its proper divisors (15104538240).

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

7923666432 is a wasteful number, since it uses less digits than its factorization.

7923666432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468999 (or 468983 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 48.

The square root of 7923666432 is about 89014.9786945995. The cubic root of 7923666432 is about 1993.6185294060.

The spelling of 7923666432 in words is "seven billion, nine hundred twenty-three million, six hundred sixty-six thousand, four hundred thirty-two".