7970335644 has 12 divisors (see below), whose sum is σ = 18597449864. Its totient is φ = 2656778544.

The previous prime is 7970335643. The next prime is 7970335691. The reversal of 7970335644 is 4465330797.

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

It is a junction number, because it is equal to n+sod(n) for n = 7970335593 and 7970335602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7970335643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332097307 + ... + 332097330.

Almost surely, 2^7970335644 is an apocalyptic number.

It is an amenable number.

7970335644 is an abundant number, since it is smaller than the sum of its proper divisors (10627114220).

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

7970335644 is a wasteful number, since it uses less digits than its factorization.

7970335644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664194644 (or 664194642 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 48.

The square root of 7970335644 is about 89276.7362978733. The cubic root of 7970335644 is about 1997.5249085581.

The spelling of 7970335644 in words is "seven billion, nine hundred seventy million, three hundred thirty-five thousand, six hundred forty-four".