28081207850104 has 8 divisors (see below), whose sum is σ = 52652264718960. Its totient is φ = 14040603925048.

The previous prime is 28081207850057. The next prime is 28081207850107. The reversal of 28081207850104 is 40105870218082.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28081207850107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1755075490624 + ... + 1755075490639.

It is an arithmetic number, because the mean of its divisors is an integer number (6581533089870).

Almost surely, 2^{28081207850104} is an apocalyptic number.

It is an amenable number.

28081207850104 is a deficient number, since it is larger than the sum of its proper divisors (24571056868856).

28081207850104 is a wasteful number, since it uses less digits than its factorization.

28081207850104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3510150981269 (or 3510150981265 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 46.

The spelling of 28081207850104 in words is "twenty-eight trillion, eighty-one billion, two hundred seven million, eight hundred fifty thousand, one hundred four".