744780946920 has 128 divisors (see below), whose sum is σ = 2309463792000. Its totient is φ = 192041210880.

The previous prime is 744780946919. The next prime is 744780946937. The reversal of 744780946920 is 29649087447.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 430375 + ... + 1294134.

It is an arithmetic number, because the mean of its divisors is an integer number (18042685875).

Almost surely, 2^744780946920 is an apocalyptic number.

It is an amenable number.

744780946920 is an abundant number, since it is smaller than the sum of its proper divisors (1564682845080).

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

744780946920 is a wasteful number, since it uses less digits than its factorization.

744780946920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724643 (or 1724639 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 60.

The spelling of 744780946920 in words is "seven hundred forty-four billion, seven hundred eighty million, nine hundred forty-six thousand, nine hundred twenty".