28577431746 has 32 divisors (see below), whose sum is σ = 63635863680. Its totient is φ = 9506241648.

The previous prime is 28577431739. The next prime is 28577431763. The reversal of 28577431746 is 64713477582.

28577431746 is a `hidden beast` number, since 28 + 577 + 4 + 3 + 1 + 7 + 46 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 28577431692 and 28577431701.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517041 + ... + 569636.

It is an arithmetic number, because the mean of its divisors is an integer number (1988620740).

Almost surely, 2^28577431746 is an apocalyptic number.

28577431746 is an abundant number, since it is smaller than the sum of its proper divisors (35058431934).

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

28577431746 is a wasteful number, since it uses less digits than its factorization.

28577431746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087175 (or 1087169 counting only the distinct ones).

The product of its digits is 7902720, while the sum is 54.

The spelling of 28577431746 in words is "twenty-eight billion, five hundred seventy-seven million, four hundred thirty-one thousand, seven hundred forty-six".