15307455240681 has 8 divisors (see below), whose sum is σ = 20410248562944. Its totient is φ = 10204816039440.

The previous prime is 15307455240647. The next prime is 15307455240691. The reversal of 15307455240681 is 18604255470351.

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

It is not a de Polignac number, because 15307455240681 - 2⁹ = 15307455240169 is a prime.

It is a super-2 number, since 2×15307455240681² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15307455240691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38298306 + ... + 38695931.

It is an arithmetic number, because the mean of its divisors is an integer number (2551281070368).

Almost surely, 2^{15307455240681} is an apocalyptic number.

It is an amenable number.

15307455240681 is a deficient number, since it is larger than the sum of its proper divisors (5102793322263).

15307455240681 is an equidigital number, since it uses as much as digits as its factorization.

15307455240681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77060511.

The product of its (nonzero) digits is 4032000, while the sum is 51.

The spelling of 15307455240681 in words is "fifteen trillion, three hundred seven billion, four hundred fifty-five million, two hundred forty thousand, six hundred eighty-one".