28075097229761 has 16 divisors (see below), whose sum is σ = 29848485018240. Its totient is φ = 26315279712000.

The previous prime is 28075097229733. The next prime is 28075097229827. The reversal of 28075097229761 is 16792279057082.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28075097229761 is a prime.

It is a super-2 number, since 2×28075097229761² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28075097229961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36645620 + ... + 37403898.

It is an arithmetic number, because the mean of its divisors is an integer number (1865530313640).

Almost surely, 2^{28075097229761} is an apocalyptic number.

It is an amenable number.

28075097229761 is a deficient number, since it is larger than the sum of its proper divisors (1773387788479).

28075097229761 is a wasteful number, since it uses less digits than its factorization.

28075097229761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767224.

The product of its (nonzero) digits is 53343360, while the sum is 65.

The spelling of 28075097229761 in words is "twenty-eight trillion, seventy-five billion, ninety-seven million, two hundred twenty-nine thousand, seven hundred sixty-one".