5216390638 has 8 divisors (see below), whose sum is σ = 7931772288. Its totient is φ = 2572466544.

The previous prime is 5216390609. The next prime is 5216390671. The reversal of 5216390638 is 8360936125.

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

It is a junction number, because it is equal to n+sod(n) for n = 5216390594 and 5216390603.

It is a congruent number.

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, 17864206 + ... + 17864497.

It is an arithmetic number, because the mean of its divisors is an integer number (991471536).

Almost surely, 2^5216390638 is an apocalyptic number.

5216390638 is a deficient number, since it is larger than the sum of its proper divisors (2715381650).

5216390638 is a wasteful number, since it uses less digits than its factorization.

5216390638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35728778.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 5216390638 is about 72224.5847201630. The cubic root of 5216390638 is about 1734.2965850230.

The spelling of 5216390638 in words is "five billion, two hundred sixteen million, three hundred ninety thousand, six hundred thirty-eight".