72900666834 has 16 divisors (see below), whose sum is σ = 150504602880. Its totient is φ = 23516344080.

The previous prime is 72900666779. The next prime is 72900666847. The reversal of 72900666834 is 43866600927.

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, 195969349 + ... + 195969720.

It is an arithmetic number, because the mean of its divisors is an integer number (9406537680).

Almost surely, 2^72900666834 is an apocalyptic number.

72900666834 is an abundant number, since it is smaller than the sum of its proper divisors (77603936046).

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

72900666834 is a wasteful number, since it uses less digits than its factorization.

72900666834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391939105.

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 72900666834 in words is "seventy-two billion, nine hundred million, six hundred sixty-six thousand, eight hundred thirty-four".