28746768963 has 30 divisors (see below), whose sum is σ = 42213846220. Its totient is φ = 17400748640.

The previous prime is 28746768949. The next prime is 28746768977. The reversal of 28746768963 is 36986764782.

It is an interprime number because it is at equal distance from previous prime (28746768949) and next prime (28746768977).

It is not a de Polignac number, because 28746768963 - 2⁵ = 28746768931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28746768894 and 28746768903.

It is not an unprimeable number, because it can be changed into a prime (28746768763) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 35533303 + ... + 35534111.

Almost surely, 2^28746768963 is an apocalyptic number.

28746768963 is a deficient number, since it is larger than the sum of its proper divisors (13467077257).

28746768963 is an frugal number, since it uses more digits than its factorization.

28746768963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665 (or 823 counting only the distinct ones).

The product of its digits is 146313216, while the sum is 66.

The spelling of 28746768963 in words is "twenty-eight billion, seven hundred forty-six million, seven hundred sixty-eight thousand, nine hundred sixty-three".