28760121646 has 16 divisors (see below), whose sum is σ = 43701001344. Its totient is φ = 14194031544.

The previous prime is 28760121631. The next prime is 28760121661. The reversal of 28760121646 is 64612106782.

It is an interprime number because it is at equal distance from previous prime (28760121631) and next prime (28760121661).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164140 + ... + 290623.

It is an arithmetic number, because the mean of its divisors is an integer number (2731312584).

Almost surely, 2^28760121646 is an apocalyptic number.

28760121646 is a deficient number, since it is larger than the sum of its proper divisors (14940879698).

28760121646 is a wasteful number, since it uses less digits than its factorization.

28760121646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455175.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 28760121646 in words is "twenty-eight billion, seven hundred sixty million, one hundred twenty-one thousand, six hundred forty-six".