74880117840 has 80 divisors (see below), whose sum is σ = 253230952896. Its totient is φ = 18152755200.

The previous prime is 74880117731. The next prime is 74880117901. The reversal of 74880117840 is 4871108847.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 74880117840.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14179201 + ... + 14184480.

Almost surely, 2^74880117840 is an apocalyptic number.

It is an amenable number.

74880117840 is an abundant number, since it is smaller than the sum of its proper divisors (178350835056).

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

74880117840 is a wasteful number, since it uses less digits than its factorization.

74880117840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28363708 (or 28363702 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 48.

The spelling of 74880117840 in words is "seventy-four billion, eight hundred eighty million, one hundred seventeen thousand, eight hundred forty".