4312861349 has 2 divisors, whose sum is σ = 4312861350. Its totient is φ = 4312861348.

The previous prime is 4312861327. The next prime is 4312861367. The reversal of 4312861349 is 9431682134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2399236324 + 1913625025 = 48982^2 + 43745^2 .

It is a cyclic number.

It is not a de Polignac number, because 4312861349 - 2²⁰ = 4311812773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4312861549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2156430674 + 2156430675.

It is an arithmetic number, because the mean of its divisors is an integer number (2156430675).

Almost surely, 2^4312861349 is an apocalyptic number.

It is an amenable number.

4312861349 is a deficient number, since it is larger than the sum of its proper divisors (1).

4312861349 is an equidigital number, since it uses as much as digits as its factorization.

4312861349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 41.

The square root of 4312861349 is about 65672.3788894540. The cubic root of 4312861349 is about 1627.7529790647.

The spelling of 4312861349 in words is "four billion, three hundred twelve million, eight hundred sixty-one thousand, three hundred forty-nine".