28360997834 has 8 divisors (see below), whose sum is σ = 45813919620. Its totient is φ = 13089691296.

The previous prime is 28360997771. The next prime is 28360997897. The reversal of 28360997834 is 43879906382.

It is an interprime number because it is at equal distance from previous prime (28360997771) and next prime (28360997897).

It can be written as a sum of positive squares in 2 ways, for example, as 27160028809 + 1200969025 = 164803^2 + 34655^2 .

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

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, 545403779 + ... + 545403830.

Almost surely, 2^28360997834 is an apocalyptic number.

28360997834 is a deficient number, since it is larger than the sum of its proper divisors (17452921786).

28360997834 is a wasteful number, since it uses less digits than its factorization.

28360997834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090807624.

The product of its (nonzero) digits is 15676416, while the sum is 59.

The spelling of 28360997834 in words is "twenty-eight billion, three hundred sixty million, nine hundred ninety-seven thousand, eight hundred thirty-four".