28377231468 has 24 divisors (see below), whose sum is σ = 66267450480. Its totient is φ = 9451375680.

The previous prime is 28377231439. The next prime is 28377231499. The reversal of 28377231468 is 86413277382.

It is a self number, because there is not a number n which added to its sum of digits gives 28377231468.

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, 947323 + ... + 976818.

It is an arithmetic number, because the mean of its divisors is an integer number (2761143770).

Almost surely, 2^28377231468 is an apocalyptic number.

It is an amenable number.

28377231468 is an abundant number, since it is smaller than the sum of its proper divisors (37890219012).

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

28377231468 is a wasteful number, since it uses less digits than its factorization.

28377231468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925377 (or 1925375 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 51.

The spelling of 28377231468 in words is "twenty-eight billion, three hundred seventy-seven million, two hundred thirty-one thousand, four hundred sixty-eight".