945664776 has 96 divisors (see below), whose sum is σ = 2967269760. Its totient is φ = 266478336.

The previous prime is 945664739. The next prime is 945664781. The reversal of 945664776 is 677466549.

945664776 is a `hidden beast` number, since 9 + 4 + 566 + 4 + 7 + 76 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23941 + ... + 49643.

It is an arithmetic number, because the mean of its divisors is an integer number (30909060).

Almost surely, 2^945664776 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 945664776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1483634880).

945664776 is an abundant number, since it is smaller than the sum of its proper divisors (2021604984).

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

945664776 is a wasteful number, since it uses less digits than its factorization.

945664776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25795 (or 25788 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 54.

The square root of 945664776 is about 30751.6629794228. The cubic root of 945664776 is about 981.5499477311.

The spelling of 945664776 in words is "nine hundred forty-five million, six hundred sixty-four thousand, seven hundred seventy-six".