28915051982 has 16 divisors (see below), whose sum is σ = 44872326000. Its totient is φ = 13957702080.

The previous prime is 28915051961. The next prime is 28915052009.

28915051982 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×28915051982² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28915051982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 997757 + ... + 1026327.

It is an arithmetic number, because the mean of its divisors is an integer number (2804520375).

Almost surely, 2^28915051982 is an apocalyptic number.

28915051982 is a deficient number, since it is larger than the sum of its proper divisors (15957274018).

28915051982 is a wasteful number, since it uses less digits than its factorization.

28915051982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46051.

The product of its (nonzero) digits is 518400, while the sum is 50.

The spelling of 28915051982 in words is "twenty-eight billion, nine hundred fifteen million, fifty-one thousand, nine hundred eighty-two".