74239675420 has 12 divisors (see below), whose sum is σ = 155903318424. Its totient is φ = 29695870160.

The previous prime is 74239675369. The next prime is 74239675421. The reversal of 74239675420 is 2457693247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74239675421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1855991866 + ... + 1855991905.

It is an arithmetic number, because the mean of its divisors is an integer number (12991943202).

Almost surely, 2^74239675420 is an apocalyptic number.

It is an amenable number.

74239675420 is an abundant number, since it is smaller than the sum of its proper divisors (81663643004).

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

74239675420 is a wasteful number, since it uses less digits than its factorization.

74239675420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3711983780 (or 3711983778 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 49.

The spelling of 74239675420 in words is "seventy-four billion, two hundred thirty-nine million, six hundred seventy-five thousand, four hundred twenty".