231964057415409 has 16 divisors (see below), whose sum is σ = 355160279297280. Its totient is φ = 133185104735760.

The previous prime is 231964057415357. The next prime is 231964057415437. The reversal of 231964057415409 is 904514750469132.

It is not a de Polignac number, because 231964057415409 - 2¹⁶ = 231964057349873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231964057455409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184979311507 + ... + 184979312760.

It is an arithmetic number, because the mean of its divisors is an integer number (22197517456080).

Almost surely, 2^{231964057415409} is an apocalyptic number.

It is an amenable number.

231964057415409 is a deficient number, since it is larger than the sum of its proper divisors (123196221881871).

231964057415409 is a wasteful number, since it uses less digits than its factorization.

231964057415409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369958624300.

The product of its (nonzero) digits is 32659200, while the sum is 60.

The spelling of 231964057415409 in words is "two hundred thirty-one trillion, nine hundred sixty-four billion, fifty-seven million, four hundred fifteen thousand, four hundred nine".