115400747213581 has 16 divisors (see below), whose sum is σ = 118774867743360. Its totient is φ = 112075263336960.

The previous prime is 115400747213579. The next prime is 115400747213617. The reversal of 115400747213581 is 185312747004511.

It is a cyclic number.

It is not a de Polignac number, because 115400747213581 - 2¹ = 115400747213579 is a prime.

It is a super-2 number, since 2×115400747213581² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115400747213561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318809265 + ... + 319171033.

It is an arithmetic number, because the mean of its divisors is an integer number (7423429233960).

Almost surely, 2^{115400747213581} is an apocalyptic number.

It is an amenable number.

115400747213581 is a deficient number, since it is larger than the sum of its proper divisors (3374120529779).

115400747213581 is an equidigital number, since it uses as much as digits as its factorization.

115400747213581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428964.

The product of its (nonzero) digits is 940800, while the sum is 49.

The spelling of 115400747213581 in words is "one hundred fifteen trillion, four hundred billion, seven hundred forty-seven million, two hundred thirteen thousand, five hundred eighty-one".