5122018642 has 8 divisors (see below), whose sum is σ = 8274030156. Its totient is φ = 2364008592.

The previous prime is 5122018639. The next prime is 5122018661. The reversal of 5122018642 is 2468102215.

It can be written as a sum of positive squares in 2 ways, for example, as 5115253441 + 6765201 = 71521^2 + 2601^2 .

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, 98500333 + ... + 98500384.

Almost surely, 2^5122018642 is an apocalyptic number.

5122018642 is a deficient number, since it is larger than the sum of its proper divisors (3152011514).

5122018642 is a wasteful number, since it uses less digits than its factorization.

5122018642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197000732.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 5122018642 is about 71568.2795797132. The cubic root of 5122018642 is about 1723.7742343650.

The spelling of 5122018642 in words is "five billion, one hundred twenty-two million, eighteen thousand, six hundred forty-two".