944647495680 has 672 divisors, whose sum is σ = 3542880107520. Its totient is φ = 214283059200.

The previous prime is 944647495657. The next prime is 944647495697. The reversal of 944647495680 is 86594746449.

It is a tau number, because it is divible by the number of its divisors (672).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 909188601 + ... + 909189639.

Almost surely, 2^944647495680 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 944647495680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1771440053760).

944647495680 is an abundant number, since it is smaller than the sum of its proper divisors (2598232611840).

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

944647495680 is a wasteful number, since it uses less digits than its factorization.

944647495680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238 (or 1207 counting only the distinct ones).

The product of its (nonzero) digits is 209018880, while the sum is 66.

The spelling of 944647495680 in words is "nine hundred forty-four billion, six hundred forty-seven million, four hundred ninety-five thousand, six hundred eighty".