28624417738 has 32 divisors (see below), whose sum is σ = 51663513600. Its totient is φ = 11619597744.

The previous prime is 28624417699. The next prime is 28624417739. The reversal of 28624417738 is 83771442682.

It is not an unprimeable number, because it can be changed into a prime (28624417739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2024931 + ... + 2039017.

It is an arithmetic number, because the mean of its divisors is an integer number (1614484800).

Almost surely, 2^28624417738 is an apocalyptic number.

28624417738 is a deficient number, since it is larger than the sum of its proper divisors (23039095862).

28624417738 is a wasteful number, since it uses less digits than its factorization.

28624417738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21754.

The product of its digits is 3612672, while the sum is 52.

The spelling of 28624417738 in words is "twenty-eight billion, six hundred twenty-four million, four hundred seventeen thousand, seven hundred thirty-eight".