28357160621 has 16 divisors (see below), whose sum is σ = 30262063104. Its totient is φ = 26509878384.

The previous prime is 28357160609. The next prime is 28357160653. The reversal of 28357160621 is 12606175382.

It is not a de Polignac number, because 28357160621 - 2¹⁸ = 28356898477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28357160681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767846 + ... + 803928.

It is an arithmetic number, because the mean of its divisors is an integer number (1891378944).

Almost surely, 2^28357160621 is an apocalyptic number.

It is an amenable number.

28357160621 is a deficient number, since it is larger than the sum of its proper divisors (1904902483).

28357160621 is a wasteful number, since it uses less digits than its factorization.

28357160621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36880.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 28357160621 in words is "twenty-eight billion, three hundred fifty-seven million, one hundred sixty thousand, six hundred twenty-one".