4731223121761 has 2 divisors, whose sum is σ = 4731223121762. Its totient is φ = 4731223121760.

The previous prime is 4731223121753. The next prime is 4731223121831. The reversal of 4731223121761 is 1671213221374.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4730559750225 + 663371536 = 2174985^2 + 25756^2 .

It is a cyclic number.

It is not a de Polignac number, because 4731223121761 - 2³ = 4731223121753 is a prime.

It is a super-2 number, since 2×4731223121761² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4731223121561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2365611560880 + 2365611560881.

It is an arithmetic number, because the mean of its divisors is an integer number (2365611560881).

Almost surely, 2^{4731223121761} is an apocalyptic number.

It is an amenable number.

4731223121761 is a deficient number, since it is larger than the sum of its proper divisors (1).

4731223121761 is an equidigital number, since it uses as much as digits as its factorization.

4731223121761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 40.

The spelling of 4731223121761 in words is "four trillion, seven hundred thirty-one billion, two hundred twenty-three million, one hundred twenty-one thousand, seven hundred sixty-one".