28700654751 has 20 divisors (see below), whose sum is σ = 42891129424. Its totient is φ = 19126044000.

The previous prime is 28700654737. The next prime is 28700654849. The reversal of 28700654751 is 15745600782.

It is not a de Polignac number, because 28700654751 - 2⁹ = 28700654239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28700654697 and 28700654706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28700654551) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 133926 + ... + 274476.

Almost surely, 2^28700654751 is an apocalyptic number.

28700654751 is a deficient number, since it is larger than the sum of its proper divisors (14190474673).

28700654751 is a wasteful number, since it uses less digits than its factorization.

28700654751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143084 (or 143075 counting only the distinct ones).

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

The spelling of 28700654751 in words is "twenty-eight billion, seven hundred million, six hundred fifty-four thousand, seven hundred fifty-one".