4252697978 has 8 divisors (see below), whose sum is σ = 6379375968. Its totient is φ = 2126239324.

The previous prime is 4252697963. The next prime is 4252697983. The reversal of 4252697978 is 8797962524.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 8075 + ... + 92577.

It is an arithmetic number, because the mean of its divisors is an integer number (797421996).

Almost surely, 2^4252697978 is an apocalyptic number.

4252697978 is a deficient number, since it is larger than the sum of its proper divisors (2126677990).

4252697978 is a wasteful number, since it uses less digits than its factorization.

4252697978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109668.

The product of its digits is 15240960, while the sum is 59.

The square root of 4252697978 is about 65212.7133157332. The cubic root of 4252697978 is about 1620.1485889720.

The spelling of 4252697978 in words is "four billion, two hundred fifty-two million, six hundred ninety-seven thousand, nine hundred seventy-eight".