28496174977 has 4 divisors (see below), whose sum is σ = 29995973680. Its totient is φ = 26996376276.

The previous prime is 28496174969. The next prime is 28496174983. The reversal of 28496174977 is 77947169482.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28496174977 - 2³ = 28496174969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28496174957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749899323 + ... + 749899360.

It is an arithmetic number, because the mean of its divisors is an integer number (7498993420).

Almost surely, 2^28496174977 is an apocalyptic number.

It is an amenable number.

28496174977 is a deficient number, since it is larger than the sum of its proper divisors (1499798703).

28496174977 is a wasteful number, since it uses less digits than its factorization.

28496174977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499798702.

The product of its digits is 42674688, while the sum is 64.

The spelling of 28496174977 in words is "twenty-eight billion, four hundred ninety-six million, one hundred seventy-four thousand, nine hundred seventy-seven".