7986474644 has 24 divisors (see below), whose sum is σ = 14595459648. Its totient is φ = 3816616320.

The previous prime is 7986474641. The next prime is 7986474647. The reversal of 7986474644 is 4464746897.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7986474641) and next prime (7986474647).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7986474641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85859 + ... + 152789.

It is an arithmetic number, because the mean of its divisors is an integer number (608144152).

Almost surely, 2^7986474644 is an apocalyptic number.

It is an amenable number.

7986474644 is a deficient number, since it is larger than the sum of its proper divisors (6608985004).

7986474644 is a wasteful number, since it uses less digits than its factorization.

7986474644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68255 (or 68253 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 59.

The square root of 7986474644 is about 89367.0780768847. The cubic root of 7986474644 is about 1998.8722512109.

The spelling of 7986474644 in words is "seven billion, nine hundred eighty-six million, four hundred seventy-four thousand, six hundred forty-four".