7946974478 has 16 divisors (see below), whose sum is σ = 12415076064. Its totient is φ = 3811641120.

The previous prime is 7946974457. The next prime is 7946974489. The reversal of 7946974478 is 8744796497.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 751025 + ... + 761532.

It is an arithmetic number, because the mean of its divisors is an integer number (775942254).

Almost surely, 2^7946974478 is an apocalyptic number.

7946974478 is a deficient number, since it is larger than the sum of its proper divisors (4468101586).

7946974478 is a wasteful number, since it uses less digits than its factorization.

7946974478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512667.

The product of its digits is 85349376, while the sum is 65.

The square root of 7946974478 is about 89145.8046012262. The cubic root of 7946974478 is about 1995.5714075223.

The spelling of 7946974478 in words is "seven billion, nine hundred forty-six million, nine hundred seventy-four thousand, four hundred seventy-eight".