7812913537 has 8 divisors (see below), whose sum is σ = 9178807680. Its totient is φ = 6556290960.

The previous prime is 7812913531. The next prime is 7812913543. The reversal of 7812913537 is 7353192187.

It is an interprime number because it is at equal distance from previous prime (7812913531) and next prime (7812913543).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7812913537 is a prime.

It is a super-2 number, since 2×7812913537² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7812913531) by changing a digit.

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, 27317737 + ... + 27318022.

It is an arithmetic number, because the mean of its divisors is an integer number (1147350960).

Almost surely, 2^7812913537 is an apocalyptic number.

It is an amenable number.

7812913537 is a deficient number, since it is larger than the sum of its proper divisors (1365894143).

7812913537 is a wasteful number, since it uses less digits than its factorization.

7812913537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54635783.

The product of its digits is 317520, while the sum is 46.

The square root of 7812913537 is about 88390.6869358984. The cubic root of 7812913537 is about 1984.2863249595.

The spelling of 7812913537 in words is "seven billion, eight hundred twelve million, nine hundred thirteen thousand, five hundred thirty-seven".