817611013090 has 16 divisors (see below), whose sum is σ = 1522448093880. Its totient is φ = 315767011840.

The previous prime is 817611013073. The next prime is 817611013127. The reversal of 817611013090 is 90310116718.

It can be written as a sum of positive squares in 4 ways, for example, as 374320041489 + 443290971601 = 611817^2 + 665801^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1409673871 + ... + 1409674450.

Almost surely, 2^817611013090 is an apocalyptic number.

817611013090 is a deficient number, since it is larger than the sum of its proper divisors (704837080790).

817611013090 is a wasteful number, since it uses less digits than its factorization.

817611013090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2819348357.

The product of its (nonzero) digits is 9072, while the sum is 37.

The spelling of 817611013090 in words is "eight hundred seventeen billion, six hundred eleven million, thirteen thousand, ninety".