28764933425860 has 48 divisors (see below), whose sum is σ = 61171934745600. Its totient is φ = 11360154109824.

The previous prime is 28764933425857. The next prime is 28764933425869. The reversal of 28764933425860 is 6852433946782.

It is a super-2 number, since 2×28764933425860² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28764933425869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164610294 + ... + 164784946.

It is an arithmetic number, because the mean of its divisors is an integer number (1274415307200).

Almost surely, 2^{28764933425860} is an apocalyptic number.

28764933425860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28764933425860 is an abundant number, since it is smaller than the sum of its proper divisors (32407001319740).

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

28764933425860 is a wasteful number, since it uses less digits than its factorization.

28764933425860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278980 (or 278978 counting only the distinct ones).

The product of its (nonzero) digits is 418037760, while the sum is 67.

The spelling of 28764933425860 in words is "twenty-eight trillion, seven hundred sixty-four billion, nine hundred thirty-three million, four hundred twenty-five thousand, eight hundred sixty".