2131268568 has 64 divisors (see below), whose sum is σ = 6259680000. Its totient is φ = 596158080.

The previous prime is 2131268567. The next prime is 2131268599. The reversal of 2131268568 is 8658621312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131268567) 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, 307068 + ... + 313931.

It is an arithmetic number, because the mean of its divisors is an integer number (97807500).

Almost surely, 2^2131268568 is an apocalyptic number.

It is an amenable number.

2131268568 is an abundant number, since it is smaller than the sum of its proper divisors (4128411432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131268568 is a wasteful number, since it uses less digits than its factorization.

2131268568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621032 (or 621028 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 2131268568 is about 46165.6643838253. The cubic root of 2131268568 is about 1286.9037310362.

The spelling of 2131268568 in words is "two billion, one hundred thirty-one million, two hundred sixty-eight thousand, five hundred sixty-eight".