28741392477 has 12 divisors (see below), whose sum is σ = 47446108320. Its totient is φ = 16423652808.

The previous prime is 28741392461. The next prime is 28741392487. The reversal of 28741392477 is 77429314782.

28741392477 is a `hidden beast` number, since 2 + 8 + 74 + 13 + 92 + 477 = 666.

It is not a de Polignac number, because 28741392477 - 2⁴ = 28741392461 is a prime.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (28741392487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228106227 + ... + 228106352.

It is an arithmetic number, because the mean of its divisors is an integer number (3953842360).

Almost surely, 2^28741392477 is an apocalyptic number.

It is an amenable number.

28741392477 is a deficient number, since it is larger than the sum of its proper divisors (18704715843).

28741392477 is a wasteful number, since it uses less digits than its factorization.

28741392477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456212592 (or 456212589 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 54.

The spelling of 28741392477 in words is "twenty-eight billion, seven hundred forty-one million, three hundred ninety-two thousand, four hundred seventy-seven".