38611968763 has 4 divisors (see below), whose sum is σ = 38622299320. Its totient is φ = 38601638208.

The previous prime is 38611968757. The next prime is 38611968779. The reversal of 38611968763 is 36786911683.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 38611968763 - 2²¹ = 38609871611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38611968698 and 38611968707.

It is not an unprimeable number, because it can be changed into a prime (38611968793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5159670 + ... + 5167147.

It is an arithmetic number, because the mean of its divisors is an integer number (9655574830).

Almost surely, 2^38611968763 is an apocalyptic number.

38611968763 is a deficient number, since it is larger than the sum of its proper divisors (10330557).

38611968763 is a wasteful number, since it uses less digits than its factorization.

38611968763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10330556.

The product of its digits is 7838208, while the sum is 58.

The spelling of 38611968763 in words is "thirty-eight billion, six hundred eleven million, nine hundred sixty-eight thousand, seven hundred sixty-three".