1157541874081 has 4 divisors (see below), whose sum is σ = 1184461452592. Its totient is φ = 1130622295572.

The previous prime is 1157541874003. The next prime is 1157541874123. The reversal of 1157541874081 is 1804781457511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1157541874081 - 2¹⁹ = 1157541349793 is a prime.

It is a super-2 number, since 2×1157541874081² (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 (1157241874081) 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 3 ways as a sum of consecutive naturals, for example, 13459789191 + ... + 13459789276.

It is an arithmetic number, because the mean of its divisors is an integer number (296115363148).

Almost surely, 2^{1157541874081} is an apocalyptic number.

It is an amenable number.

1157541874081 is a deficient number, since it is larger than the sum of its proper divisors (26919578511).

1157541874081 is an equidigital number, since it uses as much as digits as its factorization.

1157541874081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26919578510.

The product of its (nonzero) digits is 1254400, while the sum is 52.

The spelling of 1157541874081 in words is "one trillion, one hundred fifty-seven billion, five hundred forty-one million, eight hundred seventy-four thousand, eighty-one".