28003077501025 has 24 divisors (see below), whose sum is σ = 37923524176608. Its totient is φ = 20342757600000.

The previous prime is 28003077500989. The next prime is 28003077501041. The reversal of 28003077501025 is 52010577030082.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-28003077501025 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, 57549651 + ... + 58034200.

It is an arithmetic number, because the mean of its divisors is an integer number (1580146840692).

Almost surely, 2^{28003077501025} is an apocalyptic number.

28003077501025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28003077501025 is a deficient number, since it is larger than the sum of its proper divisors (9920446675583).

28003077501025 is a wasteful number, since it uses less digits than its factorization.

28003077501025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115584753 (or 115584748 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

The spelling of 28003077501025 in words is "twenty-eight trillion, three billion, seventy-seven million, five hundred one thousand, twenty-five".