28877614749 has 16 divisors (see below), whose sum is σ = 42798153600. Its totient is φ = 19244317248.

The previous prime is 28877614681. The next prime is 28877614763. The reversal of 28877614749 is 94741677882.

28877614749 is a `hidden beast` number, since 2 + 8 + 8 + 7 + 7 + 614 + 7 + 4 + 9 = 666.

It is not a de Polignac number, because 28877614749 - 2⁹ = 28877614237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28877614789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134529 + ... + 275414.

It is an arithmetic number, because the mean of its divisors is an integer number (2674884600).

Almost surely, 2^28877614749 is an apocalyptic number.

It is an amenable number.

28877614749 is a deficient number, since it is larger than the sum of its proper divisors (13920538851).

28877614749 is a wasteful number, since it uses less digits than its factorization.

28877614749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412561 (or 412555 counting only the distinct ones).

The product of its digits is 37933056, while the sum is 63.

The spelling of 28877614749 in words is "twenty-eight billion, eight hundred seventy-seven million, six hundred fourteen thousand, seven hundred forty-nine".