1157845808651 has 16 divisors (see below), whose sum is σ = 1353658814400. Its totient is φ = 989939301120.

The previous prime is 1157845808627. The next prime is 1157845808663. The reversal of 1157845808651 is 1568085487511.

It is a de Polignac number, because none of the positive numbers 2^k-1157845808651 is a prime.

It is a super-2 number, since 2×1157845808651² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1157845888651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4115270 + ... + 4387611.

It is an arithmetic number, because the mean of its divisors is an integer number (84603675900).

Almost surely, 2^{1157845808651} is an apocalyptic number.

1157845808651 is a deficient number, since it is larger than the sum of its proper divisors (195813005749).

1157845808651 is an frugal number, since it uses more digits than its factorization.

1157845808651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8503299 (or 8503285 counting only the distinct ones).

The product of its (nonzero) digits is 10752000, while the sum is 59.

The spelling of 1157845808651 in words is "one trillion, one hundred fifty-seven billion, eight hundred forty-five million, eight hundred eight thousand, six hundred fifty-one".