7970721148 has 24 divisors (see below), whose sum is σ = 15026189472. Its totient is φ = 3677705664.

The previous prime is 7970721091. The next prime is 7970721163. The reversal of 7970721148 is 8411270797.

It is a junction number, because it is equal to n+sod(n) for n = 7970721098 and 7970721107.

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, 170361 + ... + 212047.

It is an arithmetic number, because the mean of its divisors is an integer number (626091228).

Almost surely, 2^7970721148 is an apocalyptic number.

It is an amenable number.

7970721148 is a deficient number, since it is larger than the sum of its proper divisors (7055468324).

7970721148 is a wasteful number, since it uses less digits than its factorization.

7970721148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45381 (or 45379 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 46.

The square root of 7970721148 is about 89278.8953112660. The cubic root of 7970721148 is about 1997.5571130332.

The spelling of 7970721148 in words is "seven billion, nine hundred seventy million, seven hundred twenty-one thousand, one hundred forty-eight".