28072323590 has 8 divisors (see below), whose sum is σ = 50530182480. Its totient is φ = 11228929432.

The previous prime is 28072323581. The next prime is 28072323649. The reversal of 28072323590 is 9532327082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1403616170 + ... + 1403616189.

It is an arithmetic number, because the mean of its divisors is an integer number (6316272810).

Almost surely, 2^28072323590 is an apocalyptic number.

28072323590 is a deficient number, since it is larger than the sum of its proper divisors (22457858890).

28072323590 is a wasteful number, since it uses less digits than its factorization.

28072323590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807232366.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 28072323590 in words is "twenty-eight billion, seventy-two million, three hundred twenty-three thousand, five hundred ninety".