231977906146 has 8 divisors (see below), whose sum is σ = 397676410560. Its totient is φ = 99419102628.

The previous prime is 231977906129. The next prime is 231977906197. The reversal of 231977906146 is 641609779132.

231977906146 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8284925206 + ... + 8284925233.

It is an arithmetic number, because the mean of its divisors is an integer number (49709551320).

Almost surely, 2^231977906146 is an apocalyptic number.

231977906146 is a deficient number, since it is larger than the sum of its proper divisors (165698504414).

231977906146 is a wasteful number, since it uses less digits than its factorization.

231977906146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16569850448.

The product of its (nonzero) digits is 3429216, while the sum is 55.

The spelling of 231977906146 in words is "two hundred thirty-one billion, nine hundred seventy-seven million, nine hundred six thousand, one hundred forty-six".