5065400638 has 4 divisors (see below), whose sum is σ = 7598100960. Its totient is φ = 2532700318.

The previous prime is 5065400633. The next prime is 5065400671. The reversal of 5065400638 is 8360045605.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 5065400597 and 5065400606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5065400633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1266350158 + ... + 1266350161.

It is an arithmetic number, because the mean of its divisors is an integer number (1899525240).

Almost surely, 2^5065400638 is an apocalyptic number.

5065400638 is a deficient number, since it is larger than the sum of its proper divisors (2532700322).

5065400638 is a wasteful number, since it uses less digits than its factorization.

5065400638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532700321.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 5065400638 is about 71171.6280409546. The cubic root of 5065400638 is about 1717.3992421188.

The spelling of 5065400638 in words is "five billion, sixty-five million, four hundred thousand, six hundred thirty-eight".