28971461592 has 64 divisors (see below), whose sum is σ = 84711888000. Its totient is φ = 9148881312.

The previous prime is 28971461579. The next prime is 28971461609. The reversal of 28971461592 is 29516417982.

It is a happy number.

28971461592 is a `hidden beast` number, since 2 + 8 + 9 + 7 + 1 + 46 + 1 + 592 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3525558 + ... + 3533765.

It is an arithmetic number, because the mean of its divisors is an integer number (1323623250).

Almost surely, 2^28971461592 is an apocalyptic number.

It is an amenable number.

28971461592 is an abundant number, since it is smaller than the sum of its proper divisors (55740426408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28971461592 is a wasteful number, since it uses less digits than its factorization.

28971461592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7059357 (or 7059347 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The spelling of 28971461592 in words is "twenty-eight billion, nine hundred seventy-one million, four hundred sixty-one thousand, five hundred ninety-two".