7938385946 has 32 divisors (see below), whose sum is σ = 12418154496. Its totient is φ = 3801798000.

The previous prime is 7938385937. The next prime is 7938385957. The reversal of 7938385946 is 6495838397.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3759431 + ... + 3761541.

It is an arithmetic number, because the mean of its divisors is an integer number (388067328).

Almost surely, 2^7938385946 is an apocalyptic number.

7938385946 is a deficient number, since it is larger than the sum of its proper divisors (4479768550).

7938385946 is a wasteful number, since it uses less digits than its factorization.

7938385946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738.

The product of its digits is 39191040, while the sum is 62.

The square root of 7938385946 is about 89097.6203161454. The cubic root of 7938385946 is about 1994.8522572399.

The spelling of 7938385946 in words is "seven billion, nine hundred thirty-eight million, three hundred eighty-five thousand, nine hundred forty-six".