4331264432261 has 4 divisors (see below), whose sum is σ = 4664438619372. Its totient is φ = 3998090245152.

The previous prime is 4331264432219. The next prime is 4331264432267. The reversal of 4331264432261 is 1622344621334.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1057824592036 + 3273439840225 = 1028506^2 + 1809265^2 .

It is a cyclic number.

It is not a de Polignac number, because 4331264432261 - 2²² = 4331260237957 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 (4331264432267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166587093536 + ... + 166587093561.

It is an arithmetic number, because the mean of its divisors is an integer number (1166109654843).

Almost surely, 2^{4331264432261} is an apocalyptic number.

It is an amenable number.

4331264432261 is a deficient number, since it is larger than the sum of its proper divisors (333174187111).

4331264432261 is a wasteful number, since it uses less digits than its factorization.

4331264432261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333174187110.

The product of its digits is 497664, while the sum is 41.

The spelling of 4331264432261 in words is "four trillion, three hundred thirty-one billion, two hundred sixty-four million, four hundred thirty-two thousand, two hundred sixty-one".