72738413723 has 8 divisors (see below), whose sum is σ = 77045643792. Its totient is φ = 68434350336.

The previous prime is 72738413719. The next prime is 72738413743. The reversal of 72738413723 is 32731483727.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72738413723 - 2² = 72738413719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72738413743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 744290 + ... + 836327.

It is an arithmetic number, because the mean of its divisors is an integer number (9630705474).

Almost surely, 2^72738413723 is an apocalyptic number.

72738413723 is a deficient number, since it is larger than the sum of its proper divisors (4307230069).

72738413723 is a wasteful number, since it uses less digits than its factorization.

72738413723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583341.

The product of its digits is 1185408, while the sum is 47.

The spelling of 72738413723 in words is "seventy-two billion, seven hundred thirty-eight million, four hundred thirteen thousand, seven hundred twenty-three".