28055476701 has 72 divisors (see below), whose sum is σ = 48126438360. Its totient is φ = 15697753344.

The previous prime is 28055476693. The next prime is 28055476711. The reversal of 28055476701 is 10767455082.

28055476701 is a `hidden beast` number, since 28 + 0 + 554 + 7 + 6 + 70 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1602080676 + 26453396025 = 40026^2 + 162645^2 .

It is not a de Polignac number, because 28055476701 - 2³ = 28055476693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28055476711) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 16570611 + ... + 16572303.

It is an arithmetic number, because the mean of its divisors is an integer number (668422755).

Almost surely, 2^28055476701 is an apocalyptic number.

28055476701 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

28055476701 is a deficient number, since it is larger than the sum of its proper divisors (20070961659).

28055476701 is a wasteful number, since it uses less digits than its factorization.

28055476701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2475 (or 2465 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 28055476701 in words is "twenty-eight billion, fifty-five million, four hundred seventy-six thousand, seven hundred one".