4431612236261 has 4 divisors (see below), whose sum is σ = 5064699698592. Its totient is φ = 3798524773932.

The previous prime is 4431612236231. The next prime is 4431612236351. The reversal of 4431612236261 is 1626322161344.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4431612236261 - 2¹⁴ = 4431612219877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4431612236231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316543731155 + ... + 316543731168.

It is an arithmetic number, because the mean of its divisors is an integer number (1266174924648).

Almost surely, 2^{4431612236261} is an apocalyptic number.

It is an amenable number.

4431612236261 is a deficient number, since it is larger than the sum of its proper divisors (633087462331).

4431612236261 is an equidigital number, since it uses as much as digits as its factorization.

4431612236261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633087462330.

The product of its digits is 248832, while the sum is 41.

The spelling of 4431612236261 in words is "four trillion, four hundred thirty-one billion, six hundred twelve million, two hundred thirty-six thousand, two hundred sixty-one".