74753647380 has 72 divisors (see below), whose sum is σ = 234067352064. Its totient is φ = 19291262400.

The previous prime is 74753647361. The next prime is 74753647387. The reversal of 74753647380 is 8374635747.

74753647380 is a `hidden beast` number, since 7 + 47 + 53 + 6 + 473 + 80 = 666.

It is a super-2 number, since 2×74753647380² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74753647387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6692776 + ... + 6703935.

Almost surely, 2^74753647380 is an apocalyptic number.

It is an amenable number.

74753647380 is an abundant number, since it is smaller than the sum of its proper divisors (159313704684).

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

74753647380 is a wasteful number, since it uses less digits than its factorization.

74753647380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13396757 (or 13396752 counting only the distinct ones).

The product of its (nonzero) digits is 11854080, while the sum is 54.

The spelling of 74753647380 in words is "seventy-four billion, seven hundred fifty-three million, six hundred forty-seven thousand, three hundred eighty".