28792555677 has 8 divisors (see below), whose sum is σ = 42655638080. Its totient is φ = 19195037100.

The previous prime is 28792555619. The next prime is 28792555723. The reversal of 28792555677 is 77655529782.

28792555677 is a `hidden beast` number, since 2 + 8 + 7 + 9 + 2 + 5 + 556 + 77 = 666.

It is not a de Polignac number, because 28792555677 - 2¹² = 28792551581 is a prime.

It is a super-2 number, since 2×28792555677² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28792555607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533195449 + ... + 533195502.

It is an arithmetic number, because the mean of its divisors is an integer number (5331954760).

Almost surely, 2^28792555677 is an apocalyptic number.

28792555677 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

28792555677 is a deficient number, since it is larger than the sum of its proper divisors (13863082403).

28792555677 is a wasteful number, since it uses less digits than its factorization.

28792555677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066390960 (or 1066390954 counting only the distinct ones).

The product of its digits is 74088000, while the sum is 63.

The spelling of 28792555677 in words is "twenty-eight billion, seven hundred ninety-two million, five hundred fifty-five thousand, six hundred seventy-seven".