2085864963 has 64 divisors (see below), whose sum is σ = 3782080512. Its totient is φ = 990443520.

The previous prime is 2085864961. The next prime is 2085865003. The reversal of 2085864963 is 3694685802.

It is not a de Polignac number, because 2085864963 - 2¹ = 2085864961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (2085864961) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 96973 + ... + 116513.

It is an arithmetic number, because the mean of its divisors is an integer number (59095008).

Almost surely, 2^2085864963 is an apocalyptic number.

2085864963 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2085864963 is a deficient number, since it is larger than the sum of its proper divisors (1696215549).

2085864963 is a wasteful number, since it uses less digits than its factorization.

2085864963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19604.

The product of its (nonzero) digits is 2488320, while the sum is 51.

The square root of 2085864963 is about 45671.2706523477. The cubic root of 2085864963 is about 1277.6995143627.

The spelling of 2085864963 in words is "two billion, eighty-five million, eight hundred sixty-four thousand, nine hundred sixty-three".