7957970136 has 48 divisors (see below), whose sum is σ = 21557150160. Its totient is φ = 2652125760.

The previous prime is 7957970131. The next prime is 7957970161. The reversal of 7957970136 is 6310797597.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7957970131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 541461 + ... + 555963.

It is an arithmetic number, because the mean of its divisors is an integer number (449107295).

Almost surely, 2^7957970136 is an apocalyptic number.

It is an amenable number.

7957970136 is an abundant number, since it is smaller than the sum of its proper divisors (13599180024).

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

7957970136 is a wasteful number, since it uses less digits than its factorization.

7957970136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22136 (or 22129 counting only the distinct ones).

The product of its (nonzero) digits is 2500470, while the sum is 54.

The square root of 7957970136 is about 89207.4556077013. The cubic root of 7957970136 is about 1996.4913596542.

The spelling of 7957970136 in words is "seven billion, nine hundred fifty-seven million, nine hundred seventy thousand, one hundred thirty-six".