5072640894 has 24 divisors (see below), whose sum is σ = 11004970392. Its totient is φ = 1688688240.

The previous prime is 5072640889. The next prime is 5072640959. The reversal of 5072640894 is 4980462705.

It is a happy number.

5072640894 is a `hidden beast` number, since 507 + 2 + 64 + 0 + 89 + 4 = 666.

It is a super-2 number, since 2×5072640894² = 51463371278962238472, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168372 + ... + 196199.

It is an arithmetic number, because the mean of its divisors is an integer number (458540433).

Almost surely, 2^5072640894 is an apocalyptic number.

5072640894 is an abundant number, since it is smaller than the sum of its proper divisors (5932329498).

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

5072640894 is a wasteful number, since it uses less digits than its factorization.

5072640894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365352 (or 365349 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 5072640894 is about 71222.4746410850. The cubic root of 5072640894 is about 1718.2171103297.

The spelling of 5072640894 in words is "five billion, seventy-two million, six hundred forty thousand, eight hundred ninety-four".