28757591010 has 48 divisors (see below), whose sum is σ = 74779034616. Its totient is φ = 7667737344.

The previous prime is 28757590987. The next prime is 28757591011. The reversal of 28757591010 is 1019575782.

28757591010 is a `hidden beast` number, since 2 + 8 + 7 + 57 + 591 + 0 + 1 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 13435359921 + 15322231089 = 115911^2 + 123783^2 .

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

It is not an unprimeable number, because it can be changed into a prime (28757591011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 993462 + ... + 1021998.

Almost surely, 2^28757591010 is an apocalyptic number.

28757591010 is an abundant number, since it is smaller than the sum of its proper divisors (46021443606).

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

28757591010 is a wasteful number, since it uses less digits than its factorization.

28757591010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39747 (or 39744 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 45.

The spelling of 28757591010 in words is "twenty-eight billion, seven hundred fifty-seven million, five hundred ninety-one thousand, ten".