63138260390 has 16 divisors (see below), whose sum is σ = 116720460432. Its totient is φ = 24572728224.

The previous prime is 63138260377. The next prime is 63138260407. The reversal of 63138260390 is 9306283136.

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, 85321604 + ... + 85322343.

It is an arithmetic number, because the mean of its divisors is an integer number (7295028777).

Almost surely, 2^63138260390 is an apocalyptic number.

63138260390 is a deficient number, since it is larger than the sum of its proper divisors (53582200042).

63138260390 is a wasteful number, since it uses less digits than its factorization.

63138260390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170643991.

The product of its (nonzero) digits is 139968, while the sum is 41.

The spelling of 63138260390 in words is "sixty-three billion, one hundred thirty-eight million, two hundred sixty thousand, three hundred ninety".