747272421504 has 512 divisors, whose sum is σ = 2635014144000. Its totient is φ = 203987496960.

The previous prime is 747272421491. The next prime is 747272421523. The reversal of 747272421504 is 405124272747.

747272421504 is a `hidden beast` number, since 7 + 4 + 72 + 72 + 4 + 2 + 1 + 504 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 747272421504.

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 63 ways as a sum of consecutive naturals, for example, 59239902 + ... + 59252514.

It is an arithmetic number, because the mean of its divisors is an integer number (5146512000).

Almost surely, 2^747272421504 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 747272421504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1317507072000).

747272421504 is an abundant number, since it is smaller than the sum of its proper divisors (1887741722496).

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

747272421504 is a wasteful number, since it uses less digits than its factorization.

747272421504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12753 (or 12735 counting only the distinct ones).

The product of its (nonzero) digits is 878080, while the sum is 45.

The spelling of 747272421504 in words is "seven hundred forty-seven billion, two hundred seventy-two million, four hundred twenty-one thousand, five hundred four".