74688748140 has 48 divisors (see below), whose sum is σ = 209153212128. Its totient is φ = 19914645504.

The previous prime is 74688748093. The next prime is 74688748187. The reversal of 74688748140 is 4184788647.

It is an interprime number because it is at equal distance from previous prime (74688748093) and next prime (74688748187).

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, 471724 + ... + 609836.

It is an arithmetic number, because the mean of its divisors is an integer number (4357358586).

Almost surely, 2^74688748140 is an apocalyptic number.

It is an amenable number.

74688748140 is an abundant number, since it is smaller than the sum of its proper divisors (134464463988).

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

74688748140 is a wasteful number, since it uses less digits than its factorization.

74688748140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147138 (or 147136 counting only the distinct ones).

The product of its (nonzero) digits is 9633792, while the sum is 57.

The spelling of 74688748140 in words is "seventy-four billion, six hundred eighty-eight million, seven hundred forty-eight thousand, one hundred forty".