74747408140 has 48 divisors (see below), whose sum is σ = 161305536672. Its totient is φ = 29074000896.

The previous prime is 74747408123. The next prime is 74747408149. The reversal of 74747408140 is 4180474747.

It is not an unprimeable number, because it can be changed into a prime (74747408149) by changing a digit.

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, 1286559 + ... + 1343401.

It is an arithmetic number, because the mean of its divisors is an integer number (3360532014).

Almost surely, 2^74747408140 is an apocalyptic number.

It is an amenable number.

74747408140 is an abundant number, since it is smaller than the sum of its proper divisors (86558128532).

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

74747408140 is a wasteful number, since it uses less digits than its factorization.

74747408140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58666 (or 58664 counting only the distinct ones).

The product of its (nonzero) digits is 702464, while the sum is 46.

The spelling of 74747408140 in words is "seventy-four billion, seven hundred forty-seven million, four hundred eight thousand, one hundred forty".