28347705954 has 24 divisors (see below), whose sum is σ = 61456035420. Its totient is φ = 9443695968.

The previous prime is 28347705889. The next prime is 28347705979. The reversal of 28347705954 is 45950774382.

It is a happy number.

28347705954 is a `hidden beast` number, since 2 + 8 + 3 + 47 + 7 + 0 + 595 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 28333978929 + 13727025 = 168327^2 + 3705^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28347705954.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 429997 + ... + 491520.

Almost surely, 2^28347705954 is an apocalyptic number.

28347705954 is an abundant number, since it is smaller than the sum of its proper divisors (33108329466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28347705954 is a wasteful number, since it uses less digits than its factorization.

28347705954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923234 (or 923231 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 54.

The spelling of 28347705954 in words is "twenty-eight billion, three hundred forty-seven million, seven hundred five thousand, nine hundred fifty-four".