28350941979 has 8 divisors (see below), whose sum is σ = 39790795840. Its totient is φ = 17905858056.

The previous prime is 28350941959. The next prime is 28350941999. The reversal of 28350941979 is 97914905382.

It is an interprime number because it is at equal distance from previous prime (28350941959) and next prime (28350941999).

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

It is not a de Polignac number, because 28350941979 - 2¹² = 28350937883 is a prime.

It is a super-2 number, since 2×28350941979² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 497384947 = 28350941979 / (2 + 8 + 3 + 5 + 0 + 9 + 4 + 1 + 9 + 7 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28350941909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248692417 + ... + 248692530.

It is an arithmetic number, because the mean of its divisors is an integer number (4973849480).

Almost surely, 2^28350941979 is an apocalyptic number.

28350941979 is a deficient number, since it is larger than the sum of its proper divisors (11439853861).

28350941979 is a wasteful number, since it uses less digits than its factorization.

28350941979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497384969.

The product of its (nonzero) digits is 4898880, while the sum is 57.

The spelling of 28350941979 in words is "twenty-eight billion, three hundred fifty million, nine hundred forty-one thousand, nine hundred seventy-nine".