28613699577 has 32 divisors (see below), whose sum is σ = 44077685760. Its totient is φ = 18325630080.

The previous prime is 28613699533. The next prime is 28613699641. The reversal of 28613699577 is 77599631682.

28613699577 is a `hidden beast` number, since 2 + 8 + 613 + 6 + 9 + 9 + 5 + 7 + 7 = 666.

It is not a de Polignac number, because 28613699577 - 2¹⁹ = 28613175289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28613699077) 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 31 ways as a sum of consecutive naturals, for example, 10098 + ... + 239435.

It is an arithmetic number, because the mean of its divisors is an integer number (1377427680).

Almost surely, 2^28613699577 is an apocalyptic number.

28613699577 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

28613699577 is a deficient number, since it is larger than the sum of its proper divisors (15463986183).

28613699577 is a wasteful number, since it uses less digits than its factorization.

28613699577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249710 (or 249704 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 63.

The spelling of 28613699577 in words is "twenty-eight billion, six hundred thirteen million, six hundred ninety-nine thousand, five hundred seventy-seven".