28718899941075 has 192 divisors, whose sum is σ = 50491520335872. Its totient is φ = 14374821260800.

The previous prime is 28718899941049. The next prime is 28718899941107. The reversal of 28718899941075 is 57014999881782.

It is not a de Polignac number, because 28718899941075 - 2²⁵ = 28718866386643 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 7434349594 + ... + 7434353456.

It is an arithmetic number, because the mean of its divisors is an integer number (262976668416).

Almost surely, 2^{28718899941075} is an apocalyptic number.

28718899941075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28718899941075 is a deficient number, since it is larger than the sum of its proper divisors (21772620394797).

28718899941075 is a wasteful number, since it uses less digits than its factorization.

28718899941075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4394 (or 4389 counting only the distinct ones).

The product of its (nonzero) digits is 731566080, while the sum is 78.

The spelling of 28718899941075 in words is "twenty-eight trillion, seven hundred eighteen billion, eight hundred ninety-nine million, nine hundred forty-one thousand, seventy-five".