28612027764 has 24 divisors (see below), whose sum is σ = 74179331520. Its totient is φ = 9537342552.

The previous prime is 28612027753. The next prime is 28612027771. The reversal of 28612027764 is 46772021682.

It is a happy number.

28612027764 is a `hidden beast` number, since 2 + 8 + 612 + 0 + 27 + 7 + 6 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132462984 + ... + 132463199.

It is an arithmetic number, because the mean of its divisors is an integer number (3090805480).

Almost surely, 2^28612027764 is an apocalyptic number.

It is an amenable number.

28612027764 is an abundant number, since it is smaller than the sum of its proper divisors (45567303756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28612027764 is a wasteful number, since it uses less digits than its factorization.

28612027764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264926196 (or 264926188 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

It can be divided in two parts, 2861 and 2027764, that added together give a square (2030625 = 1425²).

The spelling of 28612027764 in words is "twenty-eight billion, six hundred twelve million, twenty-seven thousand, seven hundred sixty-four".