9959756372 has 6 divisors (see below), whose sum is σ = 17429573658. Its totient is φ = 4979878184.

The previous prime is 9959756333. The next prime is 9959756393. The reversal of 9959756372 is 2736579599.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9958842436 + 913936 = 99794^2 + 956^2 .

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, 1244969543 + ... + 1244969550.

It is an arithmetic number, because the mean of its divisors is an integer number (2904928943).

Almost surely, 2^9959756372 is an apocalyptic number.

It is an amenable number.

9959756372 is a deficient number, since it is larger than the sum of its proper divisors (7469817286).

9959756372 is a wasteful number, since it uses less digits than its factorization.

9959756372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489939097 (or 2489939095 counting only the distinct ones).

The product of its digits is 32148900, while the sum is 62.

The square root of 9959756372 is about 99798.5790079197. The cubic root of 9959756372 is about 2151.5407288293.

The spelling of 9959756372 in words is "nine billion, nine hundred fifty-nine million, seven hundred fifty-six thousand, three hundred seventy-two".