7643372406432 has 144 divisors (see below), whose sum is σ = 23557712099040. Its totient is φ = 2163411005952.

The previous prime is 7643372406413. The next prime is 7643372406511. The reversal of 7643372406432 is 2346042733467.

It is a super-2 number, since 2×7643372406432² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7089507 + ... + 8096162.

It is an arithmetic number, because the mean of its divisors is an integer number (163595222910).

Almost surely, 2^{7643372406432} is an apocalyptic number.

It is an amenable number.

7643372406432 is an abundant number, since it is smaller than the sum of its proper divisors (15914339692608).

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

7643372406432 is a wasteful number, since it uses less digits than its factorization.

7643372406432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15185803 (or 15185788 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 51.

The spelling of 7643372406432 in words is "seven trillion, six hundred forty-three billion, three hundred seventy-two million, four hundred six thousand, four hundred thirty-two".