270090806891 has 32 divisors (see below), whose sum is σ = 294832850688. Its totient is φ = 246466851840.

The previous prime is 270090806809. The next prime is 270090806957. The reversal of 270090806891 is 198608090072.

It is a cyclic number.

It is not a de Polignac number, because 270090806891 - 2¹⁸ = 270090544747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (270090806591) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43482776 + ... + 43488986.

It is an arithmetic number, because the mean of its divisors is an integer number (9213526584).

Almost surely, 2^270090806891 is an apocalyptic number.

270090806891 is a deficient number, since it is larger than the sum of its proper divisors (24742043797).

270090806891 is a wasteful number, since it uses less digits than its factorization.

270090806891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6891.

The product of its (nonzero) digits is 435456, while the sum is 50.

The spelling of 270090806891 in words is "two hundred seventy billion, ninety million, eight hundred six thousand, eight hundred ninety-one".