7215640674 has 24 divisors (see below), whose sum is σ = 15862484400. Its totient is φ = 2186557560.

The previous prime is 7215640673. The next prime is 7215640681. The reversal of 7215640674 is 4760465127.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7215640673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4968724 + ... + 4970175.

It is an arithmetic number, because the mean of its divisors is an integer number (660936850).

Almost surely, 2^7215640674 is an apocalyptic number.

7215640674 is an abundant number, since it is smaller than the sum of its proper divisors (8646843726).

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

7215640674 is a wasteful number, since it uses less digits than its factorization.

7215640674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9938926 (or 9938915 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The square root of 7215640674 is about 84944.9272999865. The cubic root of 7215640674 is about 1932.3759898823.

The spelling of 7215640674 in words is "seven billion, two hundred fifteen million, six hundred forty thousand, six hundred seventy-four".