74457444573940 has 48 divisors (see below), whose sum is σ = 165559098619152. Its totient is φ = 28030905778176.

The previous prime is 74457444573937. The next prime is 74457444573973. The reversal of 74457444573940 is 4937544475447.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 209787816676 + 74247656757264 = 458026^2 + 8616708^2 .

It is a super-2 number, since 2×74457444573940² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101004772 + ... + 101739268.

It is an arithmetic number, because the mean of its divisors is an integer number (3449147887899).

Almost surely, 2^{74457444573940} is an apocalyptic number.

It is an amenable number.

74457444573940 is an abundant number, since it is smaller than the sum of its proper divisors (91101654045212).

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

74457444573940 is a wasteful number, since it uses less digits than its factorization.

74457444573940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032676 (or 1032674 counting only the distinct ones).

The product of its (nonzero) digits is 948326400, while the sum is 67.

The spelling of 74457444573940 in words is "seventy-four trillion, four hundred fifty-seven billion, four hundred forty-four million, five hundred seventy-three thousand, nine hundred forty".