73031972748 has 96 divisors (see below), whose sum is σ = 202480255488. Its totient is φ = 20053440000.

The previous prime is 73031972747. The next prime is 73031972771. The reversal of 73031972748 is 84727913037.

It is a happy number.

It is a super-2 number, since 2×73031972748² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 73031972748.

It is not an unprimeable number, because it can be changed into a prime (73031972743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72498 + ... + 388998.

It is an arithmetic number, because the mean of its divisors is an integer number (2109169328).

Almost surely, 2^73031972748 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73031972748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101240127744).

73031972748 is an abundant number, since it is smaller than the sum of its proper divisors (129448282740).

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

73031972748 is a wasteful number, since it uses less digits than its factorization.

73031972748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316623 (or 316621 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 51.

The spelling of 73031972748 in words is "seventy-three billion, thirty-one million, nine hundred seventy-two thousand, seven hundred forty-eight".