212540562604 has 24 divisors (see below), whose sum is σ = 373064000400. Its totient is φ = 105951284160.

The previous prime is 212540562589. The next prime is 212540562643. The reversal of 212540562604 is 406265045212.

It is a happy 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, 1923202 + ... + 2030710.

It is an arithmetic number, because the mean of its divisors is an integer number (15544333350).

Almost surely, 2^212540562604 is an apocalyptic number.

It is an amenable number.

212540562604 is a deficient number, since it is larger than the sum of its proper divisors (160523437796).

212540562604 is a wasteful number, since it uses less digits than its factorization.

212540562604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108993 (or 108991 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 212540562604 in words is "two hundred twelve billion, five hundred forty million, five hundred sixty-two thousand, six hundred four".