72738427292826 has 16 divisors (see below), whose sum is σ = 145477091401824. Its totient is φ = 24246102961584.

The previous prime is 72738427292779. The next prime is 72738427292827. The reversal of 72738427292826 is 62829272483727.

It is not an unprimeable number, because it can be changed into a prime (72738427292827) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5741680 + ... + 13358283.

It is an arithmetic number, because the mean of its divisors is an integer number (9092318212614).

Almost surely, 2^{72738427292826} is an apocalyptic number.

72738427292826 is an abundant number, since it is smaller than the sum of its proper divisors (72738664108998).

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

72738427292826 is a wasteful number, since it uses less digits than its factorization.

72738427292826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19734685.

The product of its digits is 455196672, while the sum is 69.

The spelling of 72738427292826 in words is "seventy-two trillion, seven hundred thirty-eight billion, four hundred twenty-seven million, two hundred ninety-two thousand, eight hundred twenty-six".