28051656273048 has 64 divisors (see below), whose sum is σ = 70287811624800. Its totient is φ = 9329399751680.

The previous prime is 28051656273029. The next prime is 28051656273061. The reversal of 28051656273048 is 84037265615082.

It is a super-2 number, since 2×28051656273048² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124612018 + ... + 124836926.

Almost surely, 2^{28051656273048} is an apocalyptic number.

It is an amenable number.

28051656273048 is an abundant number, since it is smaller than the sum of its proper divisors (42236155351752).

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

28051656273048 is a wasteful number, since it uses less digits than its factorization.

28051656273048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236652 (or 236648 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 57.

The spelling of 28051656273048 in words is "twenty-eight trillion, fifty-one billion, six hundred fifty-six million, two hundred seventy-three thousand, forty-eight".