231078861745 has 32 divisors (see below), whose sum is σ = 299574979200. Its totient is φ = 170580681216.

The previous prime is 231078861733. The next prime is 231078861749. The reversal of 231078861745 is 547168870132.

It is a cyclic number.

It is not a de Polignac number, because 231078861745 - 2¹³ = 231078853553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231078861692 and 231078861701.

It is not an unprimeable number, because it can be changed into a prime (231078861749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 362527 + ... + 770443.

It is an arithmetic number, because the mean of its divisors is an integer number (9361718100).

Almost surely, 2^231078861745 is an apocalyptic number.

It is an amenable number.

231078861745 is a deficient number, since it is larger than the sum of its proper divisors (68496117455).

231078861745 is a wasteful number, since it uses less digits than its factorization.

231078861745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408097.

The product of its (nonzero) digits is 2257920, while the sum is 52.

The spelling of 231078861745 in words is "two hundred thirty-one billion, seventy-eight million, eight hundred sixty-one thousand, seven hundred forty-five".