72813780742 has 24 divisors (see below), whose sum is σ = 114814014840. Its totient is φ = 34629344640.

The previous prime is 72813780727. The next prime is 72813780791. The reversal of 72813780742 is 24708731827.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2859 + ... + 381622.

It is an arithmetic number, because the mean of its divisors is an integer number (4783917285).

Almost surely, 2^72813780742 is an apocalyptic number.

72813780742 is a deficient number, since it is larger than the sum of its proper divisors (42000234098).

72813780742 is a wasteful number, since it uses less digits than its factorization.

72813780742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384708 (or 384685 counting only the distinct ones).

The product of its (nonzero) digits is 1053696, while the sum is 49.

The spelling of 72813780742 in words is "seventy-two billion, eight hundred thirteen million, seven hundred eighty thousand, seven hundred forty-two".