28075202920725 has 48 divisors (see below), whose sum is σ = 47369881080000. Its totient is φ = 14667189189120.

The previous prime is 28075202920691. The next prime is 28075202920741. The reversal of 28075202920725 is 52702920257082.

It is a happy number.

It is not a de Polignac number, because 28075202920725 - 2²⁹ = 28074666049813 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3244600 + ... + 8165649.

It is an arithmetic number, because the mean of its divisors is an integer number (986872522500).

Almost surely, 2^{28075202920725} is an apocalyptic number.

28075202920725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28075202920725 is a deficient number, since it is larger than the sum of its proper divisors (19294678159275).

28075202920725 is a wasteful number, since it uses less digits than its factorization.

28075202920725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11410934 (or 11410929 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 28075202920725 in words is "twenty-eight trillion, seventy-five billion, two hundred two million, nine hundred twenty thousand, seven hundred twenty-five".