7970137540 has 24 divisors (see below), whose sum is σ = 17721835992. Its totient is φ = 3000522240.

The previous prime is 7970137519. The next prime is 7970137561. The reversal of 7970137540 is 457310797.

It is an interprime number because it is at equal distance from previous prime (7970137519) and next prime (7970137561).

It can be written as a sum of positive squares in 4 ways, for example, as 1841439744 + 6128697796 = 42912^2 + 78286^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11720451 + ... + 11721130.

It is an arithmetic number, because the mean of its divisors is an integer number (738409833).

Almost surely, 2^7970137540 is an apocalyptic number.

It is an amenable number.

7970137540 is an abundant number, since it is smaller than the sum of its proper divisors (9751698452).

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

7970137540 is a wasteful number, since it uses less digits than its factorization.

7970137540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23441607 (or 23441605 counting only the distinct ones).

The product of its (nonzero) digits is 185220, while the sum is 43.

The square root of 7970137540 is about 89275.6267970155. The cubic root of 7970137540 is about 1997.5083588178.

The spelling of 7970137540 in words is "seven billion, nine hundred seventy million, one hundred thirty-seven thousand, five hundred forty".