74028116781540 has 384 divisors, whose sum is σ = 237359673008640. Its totient is φ = 19142513049600.

The previous prime is 74028116781533. The next prime is 74028116781589. The reversal of 74028116781540 is 4518761182047.

It is a happy number.

74028116781540 is a `hidden beast` number, since 7 + 4 + 0 + 2 + 8 + 1 + 16 + 7 + 81 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9685736959 + ... + 9685744601.

It is an arithmetic number, because the mean of its divisors is an integer number (618124148460).

Almost surely, 2^{74028116781540} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74028116781540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118679836504320).

74028116781540 is an abundant number, since it is smaller than the sum of its proper divisors (163331556227100).

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

74028116781540 is a wasteful number, since it uses less digits than its factorization.

74028116781540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10300 (or 10292 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 54.

The spelling of 74028116781540 in words is "seventy-four trillion, twenty-eight billion, one hundred sixteen million, seven hundred eighty-one thousand, five hundred forty".