74488665878 has 32 divisors (see below), whose sum is σ = 125585938080. Its totient is φ = 32846344960.

The previous prime is 74488665877. The next prime is 74488665913. The reversal of 74488665878 is 87856688447.

It is a super-2 number, since 2×74488665878² (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 (74488665871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255125 + ... + 462672.

It is an arithmetic number, because the mean of its divisors is an integer number (3924560565).

Almost surely, 2^74488665878 is an apocalyptic number.

74488665878 is a deficient number, since it is larger than the sum of its proper divisors (51097272202).

74488665878 is a wasteful number, since it uses less digits than its factorization.

74488665878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717952.

The product of its digits is 578027520, while the sum is 71.

The spelling of 74488665878 in words is "seventy-four billion, four hundred eighty-eight million, six hundred sixty-five thousand, eight hundred seventy-eight".