744781402672 has 20 divisors (see below), whose sum is σ = 1443510109440. Its totient is φ = 372262664768.

The previous prime is 744781402639. The next prime is 744781402697. The reversal of 744781402672 is 276204187447.

It is a super-3 number, since 3×744781402672³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7954288 + ... + 8047375.

It is an arithmetic number, because the mean of its divisors is an integer number (72175505472).

Almost surely, 2^744781402672 is an apocalyptic number.

It is an amenable number.

744781402672 is a deficient number, since it is larger than the sum of its proper divisors (698728706768).

744781402672 is a wasteful number, since it uses less digits than its factorization.

744781402672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16004580 (or 16004574 counting only the distinct ones).

The product of its (nonzero) digits is 4214784, while the sum is 52.

The spelling of 744781402672 in words is "seven hundred forty-four billion, seven hundred eighty-one million, four hundred two thousand, six hundred seventy-two".