231126561143615 has 8 divisors (see below), whose sum is σ = 277394236612080. Its totient is φ = 184873006755072.

The previous prime is 231126561143563. The next prime is 231126561143651. The reversal of 231126561143615 is 516341165621132.

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-231126561143615 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231126561143615.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3530233970 + ... + 3530299439.

It is an arithmetic number, because the mean of its divisors is an integer number (34674279576510).

Almost surely, 2^{231126561143615} is an apocalyptic number.

231126561143615 is a deficient number, since it is larger than the sum of its proper divisors (46267675468465).

231126561143615 is an equidigital number, since it uses as much as digits as its factorization.

231126561143615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7060539961.

The product of its digits is 777600, while the sum is 47.

The spelling of 231126561143615 in words is "two hundred thirty-one trillion, one hundred twenty-six billion, five hundred sixty-one million, one hundred forty-three thousand, six hundred fifteen".