28601497040 has 40 divisors (see below), whose sum is σ = 66532962600. Its totient is φ = 11434666496.

The previous prime is 28601496991. The next prime is 28601497079. The reversal of 28601497040 is 4079410682.

It can be written as a sum of positive squares in 4 ways, for example, as 3464028736 + 25137468304 = 58856^2 + 158548^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64202 + ... + 247638.

It is an arithmetic number, because the mean of its divisors is an integer number (1663324065).

Almost surely, 2^28601497040 is an apocalyptic number.

28601497040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28601497040 is an abundant number, since it is smaller than the sum of its proper divisors (37931465560).

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

28601497040 is a wasteful number, since it uses less digits than its factorization.

28601497040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185399 (or 185393 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 28601497040 in words is "twenty-eight billion, six hundred one million, four hundred ninety-seven thousand, forty".