28733510420264 has 16 divisors (see below), whose sum is σ = 58019588348820. Its totient is φ = 13261620193920.

The previous prime is 28733510420189. The next prime is 28733510420309. The reversal of 28733510420264 is 46202401533782.

It can be written as a sum of positive squares in 2 ways, for example, as 22145099516164 + 6588410904100 = 4705858^2 + 2566790^2 .

It is a super-2 number, since 2×28733510420264² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138141876917 + ... + 138141877124.

Almost surely, 2^{28733510420264} is an apocalyptic number.

It is an amenable number.

28733510420264 is an abundant number, since it is smaller than the sum of its proper divisors (29286077928556).

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

28733510420264 is a wasteful number, since it uses less digits than its factorization.

28733510420264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276283754060 (or 276283754056 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 47.

The spelling of 28733510420264 in words is "twenty-eight trillion, seven hundred thirty-three billion, five hundred ten million, four hundred twenty thousand, two hundred sixty-four".