213764608856 has 32 divisors (see below), whose sum is σ = 404897525760. Its totient is φ = 105792949152.

The previous prime is 213764608831. The next prime is 213764608877. The reversal of 213764608856 is 658806467312.

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, 1654121 + ... + 1778663.

It is an arithmetic number, because the mean of its divisors is an integer number (12653047680).

Almost surely, 2^213764608856 is an apocalyptic number.

It is an amenable number.

213764608856 is a deficient number, since it is larger than the sum of its proper divisors (191132916904).

213764608856 is a wasteful number, since it uses less digits than its factorization.

213764608856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126735 (or 126731 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 213764608856 in words is "two hundred thirteen billion, seven hundred sixty-four million, six hundred eight thousand, eight hundred fifty-six".