10639233778 has 8 divisors (see below), whose sum is σ = 16197042672. Its totient is φ = 5240219556.

The previous prime is 10639233679. The next prime is 10639233779. The reversal of 10639233778 is 87733293601.

10639233778 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×10639233778² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10639233779) 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, 39698500 + ... + 39698767.

It is an arithmetic number, because the mean of its divisors is an integer number (2024630334).

Almost surely, 2^10639233778 is an apocalyptic number.

10639233778 is a deficient number, since it is larger than the sum of its proper divisors (5557808894).

10639233778 is an equidigital number, since it uses as much as digits as its factorization.

10639233778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79397336.

The product of its (nonzero) digits is 1143072, while the sum is 49.

The spelling of 10639233778 in words is "ten billion, six hundred thirty-nine million, two hundred thirty-three thousand, seven hundred seventy-eight".