30085800261 has 16 divisors (see below), whose sum is σ = 43841192448. Its totient is φ = 18200473200.

The previous prime is 30085800229. The next prime is 30085800293. The reversal of 30085800261 is 16200858003.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30085800229) and next prime (30085800293).

It is not a de Polignac number, because 30085800261 - 2⁵ = 30085800229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30085800961) 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, 815305 + ... + 851406.

It is an arithmetic number, because the mean of its divisors is an integer number (2740074528).

Almost surely, 2^30085800261 is an apocalyptic number.

It is an amenable number.

30085800261 is a deficient number, since it is larger than the sum of its proper divisors (13755392187).

30085800261 is a wasteful number, since it uses less digits than its factorization.

30085800261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667272.

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 30085800261 in words is "thirty billion, eighty-five million, eight hundred thousand, two hundred sixty-one".