74938619340 has 336 divisors, whose sum is σ = 267485080800. Its totient is φ = 17474724864.

The previous prime is 74938619339. The next prime is 74938619407. The reversal of 74938619340 is 4391683947.

It is a happy number.

74938619340 is a `hidden beast` number, since 7 + 493 + 8 + 61 + 93 + 4 + 0 = 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 3590856 + ... + 3611664.

It is an arithmetic number, because the mean of its divisors is an integer number (796086550).

Almost surely, 2^74938619340 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 74938619340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133742540400).

74938619340 is an abundant number, since it is smaller than the sum of its proper divisors (192546461460).

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

74938619340 is a wasteful number, since it uses less digits than its factorization.

74938619340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20868 (or 20851 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 74938619340 in words is "seventy-four billion, nine hundred thirty-eight million, six hundred nineteen thousand, three hundred forty".