231354636645 has 128 divisors (see below), whose sum is σ = 421871763456. Its totient is φ = 107251200000.

The previous prime is 231354636613. The next prime is 231354636763. The reversal of 231354636645 is 546636453132.

It is not a de Polignac number, because 231354636645 - 2⁵ = 231354636613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231354636594 and 231354636603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 330034795 + ... + 330035495.

It is an arithmetic number, because the mean of its divisors is an integer number (3295873152).

Almost surely, 2^231354636645 is an apocalyptic number.

It is an amenable number.

231354636645 is a deficient number, since it is larger than the sum of its proper divisors (190517126811).

231354636645 is a wasteful number, since it uses less digits than its factorization.

231354636645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435.

The product of its digits is 4665600, while the sum is 48.

The spelling of 231354636645 in words is "two hundred thirty-one billion, three hundred fifty-four million, six hundred thirty-six thousand, six hundred forty-five".