28977160473 has 6 divisors (see below), whose sum is σ = 41855898474. Its totient is φ = 19318106976.

The previous prime is 28977160453. The next prime is 28977160523. The reversal of 28977160473 is 37406177982.

28977160473 is a `hidden beast` number, since 2 + 8 + 9 + 7 + 7 + 160 + 473 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18228240144 + 10748920329 = 135012^2 + 103677^2 .

It is not a de Polignac number, because 28977160473 - 2⁶ = 28977160409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28977160423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1609842240 + ... + 1609842257.

It is an arithmetic number, because the mean of its divisors is an integer number (6975983079).

Almost surely, 2^28977160473 is an apocalyptic number.

It is an amenable number.

28977160473 is a deficient number, since it is larger than the sum of its proper divisors (12878738001).

28977160473 is a wasteful number, since it uses less digits than its factorization.

28977160473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3219684503 (or 3219684500 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The spelling of 28977160473 in words is "twenty-eight billion, nine hundred seventy-seven million, one hundred sixty thousand, four hundred seventy-three".