72674754406646 has 32 divisors (see below), whose sum is σ = 131143279998720. Its totient is φ = 29506848285600.

The previous prime is 72674754406549. The next prime is 72674754406669. The reversal of 72674754406646 is 64660445747627.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43566341 + ... + 45203711.

It is an arithmetic number, because the mean of its divisors is an integer number (4098227499960).

Almost surely, 2^{72674754406646} is an apocalyptic number.

72674754406646 is a deficient number, since it is larger than the sum of its proper divisors (58468525592074).

72674754406646 is a wasteful number, since it uses less digits than its factorization.

72674754406646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804260.

The product of its (nonzero) digits is 1137991680, while the sum is 68.

The spelling of 72674754406646 in words is "seventy-two trillion, six hundred seventy-four billion, seven hundred fifty-four million, four hundred six thousand, six hundred forty-six".