23277321945 has 40 divisors (see below), whose sum is σ = 41781297096. Its totient is φ = 12398344704.

The previous prime is 23277321937. The next prime is 23277321989. The reversal of 23277321945 is 54912377232.

23277321945 is a `hidden beast` number, since 2 + 327 + 73 + 219 + 45 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 762919641 + 22514402304 = 27621^2 + 150048^2 .

It is not a de Polignac number, because 23277321945 - 2³ = 23277321937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 23277321945.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 275889 + ... + 350241.

Almost surely, 2^23277321945 is an apocalyptic number.

It is an amenable number.

23277321945 is a deficient number, since it is larger than the sum of its proper divisors (18503975151).

23277321945 is an equidigital number, since it uses as much as digits as its factorization.

23277321945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75143 (or 75134 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The spelling of 23277321945 in words is "twenty-three billion, two hundred seventy-seven million, three hundred twenty-one thousand, nine hundred forty-five".