28030027780025 has 24 divisors (see below), whose sum is σ = 35104212454464. Its totient is φ = 22200201464000.

The previous prime is 28030027780003. The next prime is 28030027780087. The reversal of 28030027780025 is 52008772003082.

It is not a de Polignac number, because 28030027780025 - 2²² = 28030023585721 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31126142 + ... + 32014008.

It is an arithmetic number, because the mean of its divisors is an integer number (1462675518936).

Almost surely, 2^{28030027780025} is an apocalyptic number.

28030027780025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28030027780025 is a deficient number, since it is larger than the sum of its proper divisors (7074184674439).

28030027780025 is a wasteful number, since it uses less digits than its factorization.

28030027780025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900481 (or 900476 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 28030027780025 in words is "twenty-eight trillion, thirty billion, twenty-seven million, seven hundred eighty thousand, twenty-five".