28077148617 has 24 divisors (see below), whose sum is σ = 44072927136. Its totient is φ = 15850775808.

The previous prime is 28077148591. The next prime is 28077148733. The reversal of 28077148617 is 71684177082.

It is not a de Polignac number, because 28077148617 - 2⁸ = 28077148361 is a prime.

It is a super-3 number, since 3×28077148617³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 28077148617.

It is not an unprimeable number, because it can be changed into a prime (28077147617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1138408 + ... + 1162809.

It is an arithmetic number, because the mean of its divisors is an integer number (1836371964).

Almost surely, 2^28077148617 is an apocalyptic number.

It is an amenable number.

28077148617 is a deficient number, since it is larger than the sum of its proper divisors (15995778519).

28077148617 is a wasteful number, since it uses less digits than its factorization.

28077148617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301317 (or 2301310 counting only the distinct ones).

The product of its (nonzero) digits is 1053696, while the sum is 51.

The spelling of 28077148617 in words is "twenty-eight billion, seventy-seven million, one hundred forty-eight thousand, six hundred seventeen".