7397970128 has 10 divisors (see below), whose sum is σ = 14333567154. Its totient is φ = 3698985056.

The previous prime is 7397970119. The next prime is 7397970133. The reversal of 7397970128 is 8210797937.

It can be written as a sum of positive squares in only one way, i.e., 7383621184 + 14348944 = 85928^2 + 3788^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7397970128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 231186551 + ... + 231186582.

Almost surely, 2^7397970128 is an apocalyptic number.

It is an amenable number.

7397970128 is a deficient number, since it is larger than the sum of its proper divisors (6935597026).

7397970128 is a wasteful number, since it uses less digits than its factorization.

7397970128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462373141 (or 462373135 counting only the distinct ones).

The product of its (nonzero) digits is 1333584, while the sum is 53.

The square root of 7397970128 is about 86011.4534698723. The cubic root of 7397970128 is about 1948.5169638215.

The spelling of 7397970128 in words is "seven billion, three hundred ninety-seven million, nine hundred seventy thousand, one hundred twenty-eight".