212451646004 has 24 divisors (see below), whose sum is σ = 407175911520. Its totient is φ = 96392661984.

The previous prime is 212451645997. The next prime is 212451646021. The reversal of 212451646004 is 400646154212.

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, 34620734 + ... + 34626869.

It is an arithmetic number, because the mean of its divisors is an integer number (16965662980).

Almost surely, 2^212451646004 is an apocalyptic number.

It is an amenable number.

212451646004 is a deficient number, since it is larger than the sum of its proper divisors (194724265516).

212451646004 is a wasteful number, since it uses less digits than its factorization.

212451646004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69247679 (or 69247677 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 212451646004 in words is "two hundred twelve billion, four hundred fifty-one million, six hundred forty-six thousand, four".