7943915492 has 12 divisors (see below), whose sum is σ = 14045170860. Its totient is φ = 3931009536.

The previous prime is 7943915461. The next prime is 7943915519. The reversal of 7943915492 is 2945193497.

It can be written as a sum of positive squares in 2 ways, for example, as 4701296356 + 3242619136 = 68566^2 + 56944^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10236617 + ... + 10237392.

It is an arithmetic number, because the mean of its divisors is an integer number (1170430905).

Almost surely, 2^7943915492 is an apocalyptic number.

It is an amenable number.

7943915492 is a deficient number, since it is larger than the sum of its proper divisors (6101255368).

7943915492 is a wasteful number, since it uses less digits than its factorization.

7943915492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20474110 (or 20474108 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 53.

The square root of 7943915492 is about 89128.6457431055. The cubic root of 7943915492 is about 1995.3153264846.

The spelling of 7943915492 in words is "seven billion, nine hundred forty-three million, nine hundred fifteen thousand, four hundred ninety-two".