74052272720 has 40 divisors (see below), whose sum is σ = 172218742920. Its totient is φ = 29612787200.

The previous prime is 74052272699. The next prime is 74052272743. The reversal of 74052272720 is 2727225047.

It can be written as a sum of positive squares in 4 ways, for example, as 12264233536 + 61788039184 = 110744^2 + 248572^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171026 + ... + 421134.

It is an arithmetic number, because the mean of its divisors is an integer number (4305468573).

Almost surely, 2^74052272720 is an apocalyptic number.

It is an amenable number.

74052272720 is an abundant number, since it is smaller than the sum of its proper divisors (98166470200).

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

74052272720 is a wasteful number, since it uses less digits than its factorization.

74052272720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253823 (or 253817 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 38.

Adding to 74052272720 its reverse (2727225047), we get a palindrome (76779497767).

The spelling of 74052272720 in words is "seventy-four billion, fifty-two million, two hundred seventy-two thousand, seven hundred twenty".