28813722435 has 32 divisors (see below), whose sum is σ = 52608847680. Its totient is φ = 14951983104.

The previous prime is 28813722419. The next prime is 28813722449. The reversal of 28813722435 is 53422731882.

28813722435 is a `hidden beast` number, since 2 + 88 + 137 + 2 + 2 + 435 = 666.

It is not a de Polignac number, because 28813722435 - 2⁴ = 28813722419 is a prime.

It is a super-2 number, since 2×28813722435² (a number of 22 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2879262 + ... + 2889251.

It is an arithmetic number, because the mean of its divisors is an integer number (1644026490).

Almost surely, 2^28813722435 is an apocalyptic number.

28813722435 is a deficient number, since it is larger than the sum of its proper divisors (23795125245).

28813722435 is a wasteful number, since it uses less digits than its factorization.

28813722435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5768564 (or 5768558 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The spelling of 28813722435 in words is "twenty-eight billion, eight hundred thirteen million, seven hundred twenty-two thousand, four hundred thirty-five".