747253678080 has 480 divisors, whose sum is σ = 2943028134144. Its totient is φ = 157657595904.

The previous prime is 747253678063. The next prime is 747253678091. The reversal of 747253678080 is 80876352747.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (480).

It is a self number, because there is not a number n which added to its sum of digits gives 747253678080.

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 31 ways as a sum of consecutive naturals, for example, 22347454 + ... + 22380866.

Almost surely, 2^747253678080 is an apocalyptic number.

747253678080 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 747253678080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1471514067072).

747253678080 is an abundant number, since it is smaller than the sum of its proper divisors (2195774456064).

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

747253678080 is a wasteful number, since it uses less digits than its factorization.

747253678080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33469 (or 33443 counting only the distinct ones).

The product of its (nonzero) digits is 15805440, while the sum is 57.

The spelling of 747253678080 in words is "seven hundred forty-seven billion, two hundred fifty-three million, six hundred seventy-eight thousand, eighty".