747408081336 has 64 divisors (see below), whose sum is σ = 2137288377600. Its totient is φ = 213361494528.

The previous prime is 747408081323. The next prime is 747408081337. The reversal of 747408081336 is 633180804747.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747408081337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1717281 + ... + 2108048.

It is an arithmetic number, because the mean of its divisors is an integer number (33395130900).

Almost surely, 2^747408081336 is an apocalyptic number.

It is an amenable number.

747408081336 is an abundant number, since it is smaller than the sum of its proper divisors (1389880296264).

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

747408081336 is a wasteful number, since it uses less digits than its factorization.

747408081336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3826508 (or 3826504 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 747408081336 in words is "seven hundred forty-seven billion, four hundred eight million, eighty-one thousand, three hundred thirty-six".