231135546878 has 16 divisors (see below), whose sum is σ = 353224316160. Its totient is φ = 113401271256.

The previous prime is 231135546847. The next prime is 231135546907. The reversal of 231135546878 is 878645531132.

It is a super-3 number, since 3×231135546878³ (a number of 35 digits) contains 333 as substring.

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, 1725926 + ... + 1855017.

It is an arithmetic number, because the mean of its divisors is an integer number (22076519760).

Almost surely, 2^231135546878 is an apocalyptic number.

231135546878 is a deficient number, since it is larger than the sum of its proper divisors (122088769282).

231135546878 is a wasteful number, since it uses less digits than its factorization.

231135546878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3581551.

The product of its digits is 4838400, while the sum is 53.

The spelling of 231135546878 in words is "two hundred thirty-one billion, one hundred thirty-five million, five hundred forty-six thousand, eight hundred seventy-eight".