28401073273 has 16 divisors (see below), whose sum is σ = 30253858560. Its totient is φ = 26568864000.

The previous prime is 28401073199. The next prime is 28401073277. The reversal of 28401073273 is 37237010482.

It is a cyclic number.

It is not a de Polignac number, because 28401073273 - 2²¹ = 28398976121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28401073277) 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, 2968848 + ... + 2978398.

It is an arithmetic number, because the mean of its divisors is an integer number (1890866160).

Almost surely, 2^28401073273 is an apocalyptic number.

It is an amenable number.

28401073273 is a deficient number, since it is larger than the sum of its proper divisors (1852785287).

28401073273 is a wasteful number, since it uses less digits than its factorization.

28401073273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10608.

The product of its (nonzero) digits is 56448, while the sum is 37.

The spelling of 28401073273 in words is "twenty-eight billion, four hundred one million, seventy-three thousand, two hundred seventy-three".