7901401672 has 16 divisors (see below), whose sum is σ = 14818646700. Its totient is φ = 3949762560.

The previous prime is 7901401621. The next prime is 7901401679. The reversal of 7901401672 is 2761041097.

It can be written as a sum of positive squares in 2 ways, for example, as 6884684676 + 1016716996 = 82974^2 + 31886^2 .

It is not an unprimeable number, because it can be changed into a prime (7901401679) 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, 80829 + ... + 149452.

Almost surely, 2^7901401672 is an apocalyptic number.

It is an amenable number.

7901401672 is a deficient number, since it is larger than the sum of its proper divisors (6917245028).

7901401672 is a wasteful number, since it uses less digits than its factorization.

7901401672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234576 (or 234572 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 7901401672 is about 88889.8288444747. The cubic root of 7901401672 is about 1991.7494839610.

The spelling of 7901401672 in words is "seven billion, nine hundred one million, four hundred one thousand, six hundred seventy-two".