28379157879 has 32 divisors (see below), whose sum is σ = 40768151040. Its totient is φ = 17522870400.

The previous prime is 28379157871. The next prime is 28379157881. The reversal of 28379157879 is 97875197382.

It is not a de Polignac number, because 28379157879 - 2³ = 28379157871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28379157871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166464 + ... + 290634.

It is an arithmetic number, because the mean of its divisors is an integer number (1274004720).

Almost surely, 2^28379157879 is an apocalyptic number.

28379157879 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

28379157879 is a deficient number, since it is larger than the sum of its proper divisors (12388993161).

28379157879 is a wasteful number, since it uses less digits than its factorization.

28379157879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124311.

The product of its digits is 53343360, while the sum is 66.

The spelling of 28379157879 in words is "twenty-eight billion, three hundred seventy-nine million, one hundred fifty-seven thousand, eight hundred seventy-nine".