213698694900 has 72 divisors (see below), whose sum is σ = 619531222464. Its totient is φ = 56872985600.

The previous prime is 213698694757. The next prime is 213698694919. The reversal of 213698694900 is 9496896312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 557181 + ... + 858980.

It is an arithmetic number, because the mean of its divisors is an integer number (8604600312).

Almost surely, 2^213698694900 is an apocalyptic number.

213698694900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213698694900 is an abundant number, since it is smaller than the sum of its proper divisors (405832527564).

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

213698694900 is a wasteful number, since it uses less digits than its factorization.

213698694900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416681 (or 1416674 counting only the distinct ones).

The product of its (nonzero) digits is 5038848, while the sum is 57.

The spelling of 213698694900 in words is "two hundred thirteen billion, six hundred ninety-eight million, six hundred ninety-four thousand, nine hundred".