74293780539456 has 189 divisors, whose sum is σ = 215596104213711. Its totient is φ = 24460570600704.

The previous prime is 74293780539449. The next prime is 74293780539487. The reversal of 74293780539456 is 65493508739247.

It is a happy number.

The square root of 74293780539456 is 8619384.

It is a perfect power (a square), and thus also a powerful number.

74293780539456 is a `hidden beast` number, since 7 + 4 + 2 + 9 + 3 + 7 + 80 + 539 + 4 + 5 + 6 = 666.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 17169810765 + ... + 17169815091.

Almost surely, 2^{74293780539456} is an apocalyptic number.

74293780539456 is the 8619384-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74293780539456

74293780539456 is an abundant number, since it is smaller than the sum of its proper divisors (141302323674255).

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

74293780539456 is an frugal number, since it uses more digits than its factorization.

74293780539456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8838 (or 4415 counting only the distinct ones).

The product of its (nonzero) digits is 1371686400, while the sum is 72.

The spelling of 74293780539456 in words is "seventy-four trillion, two hundred ninety-three billion, seven hundred eighty million, five hundred thirty-nine thousand, four hundred fifty-six".