7934643992 has 64 divisors (see below), whose sum is σ = 16584147360. Its totient is φ = 3528345600.

The previous prime is 7934643973. The next prime is 7934644001. The reversal of 7934643992 is 2993464397.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1737392 + ... + 1741952.

Almost surely, 2^7934643992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7934643992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8292073680).

7934643992 is an abundant number, since it is smaller than the sum of its proper divisors (8649503368).

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

7934643992 is a wasteful number, since it uses less digits than its factorization.

7934643992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5004 (or 5000 counting only the distinct ones).

The product of its digits is 8817984, while the sum is 56.

The square root of 7934643992 is about 89076.6186605666. The cubic root of 7934643992 is about 1994.5387670408.

The spelling of 7934643992 in words is "seven billion, nine hundred thirty-four million, six hundred forty-three thousand, nine hundred ninety-two".