231641746747 has 2 divisors, whose sum is σ = 231641746748. Its totient is φ = 231641746746.

The previous prime is 231641746727. The next prime is 231641746799. The reversal of 231641746747 is 747647146132.

It is an a-pointer prime, because the next prime (231641746799) can be obtained adding 231641746747 to its sum of digits (52).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231641746747 - 2⁷ = 231641746619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231641746694 and 231641746703.

It is not a weakly prime, because it can be changed into another prime (231641746727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115820873373 + 115820873374.

It is an arithmetic number, because the mean of its divisors is an integer number (115820873374).

Almost surely, 2^231641746747 is an apocalyptic number.

231641746747 is a deficient number, since it is larger than the sum of its proper divisors (1).

231641746747 is an equidigital number, since it uses as much as digits as its factorization.

231641746747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4741632, while the sum is 52.

The spelling of 231641746747 in words is "two hundred thirty-one billion, six hundred forty-one million, seven hundred forty-six thousand, seven hundred forty-seven".