2235993861 has 16 divisors (see below), whose sum is σ = 2991542400. Its totient is φ = 1485565248.

The previous prime is 2235993847. The next prime is 2235993863. The reversal of 2235993861 is 1683995322.

It is not a de Polignac number, because 2235993861 - 2¹⁴ = 2235977477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2235993861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2235993863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1694560 + ... + 1695878.

It is an arithmetic number, because the mean of its divisors is an integer number (186971400).

Almost surely, 2^2235993861 is an apocalyptic number.

It is an amenable number.

2235993861 is a deficient number, since it is larger than the sum of its proper divisors (755548539).

2235993861 is a wasteful number, since it uses less digits than its factorization.

2235993861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2828.

The product of its digits is 699840, while the sum is 48.

The square root of 2235993861 is about 47286.2967570944. The cubic root of 2235993861 is about 1307.6460379882.

The spelling of 2235993861 in words is "two billion, two hundred thirty-five million, nine hundred ninety-three thousand, eight hundred sixty-one".