74021105144 has 32 divisors (see below), whose sum is σ = 158638819680. Its totient is φ = 31718897664.

The previous prime is 74021105131. The next prime is 74021105149. The reversal of 74021105144 is 44150112047.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74021105149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328964 + ... + 506220.

It is an arithmetic number, because the mean of its divisors is an integer number (4957463115).

Almost surely, 2^74021105144 is an apocalyptic number.

It is an amenable number.

74021105144 is an abundant number, since it is smaller than the sum of its proper divisors (84617714536).

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

74021105144 is a wasteful number, since it uses less digits than its factorization.

74021105144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184727 (or 184723 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The spelling of 74021105144 in words is "seventy-four billion, twenty-one million, one hundred five thousand, one hundred forty-four".