845906951824 has 45 divisors (see below), whose sum is σ = 1801570878499. Its totient is φ = 384484765280.

The previous prime is 845906951789. The next prime is 845906951849. The reversal of 845906951824 is 428159609548.

The square root of 845906951824 is 919732.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×845906951824² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 40457757 + ... + 40478659.

Almost surely, 2^845906951824 is an apocalyptic number.

845906951824 is the 919732-nd square number.

It is an amenable number.

845906951824 is an abundant number, since it is smaller than the sum of its proper divisors (955663926675).

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

845906951824 is an frugal number, since it uses more digits than its factorization.

845906951824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41836 (or 20916 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 61.

The spelling of 845906951824 in words is "eight hundred forty-five billion, nine hundred six million, nine hundred fifty-one thousand, eight hundred twenty-four".