231896273761 has 4 divisors (see below), whose sum is σ = 232303824900. Its totient is φ = 231488722624.

The previous prime is 231896273689. The next prime is 231896273827. The reversal of 231896273761 is 167372698132.

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 116758890000 + 115137383761 = 341700^2 + 339319^2 .

It is a cyclic number.

It is not a de Polignac number, because 231896273761 - 2¹⁷ = 231896142689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231890273761) 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, 203774716 + ... + 203775853.

It is an arithmetic number, because the mean of its divisors is an integer number (58075956225).

Almost surely, 2^231896273761 is an apocalyptic number.

It is an amenable number.

231896273761 is a deficient number, since it is larger than the sum of its proper divisors (407551139).

231896273761 is an equidigital number, since it uses as much as digits as its factorization.

231896273761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407551138.

The product of its digits is 4572288, while the sum is 55.

The spelling of 231896273761 in words is "two hundred thirty-one billion, eight hundred ninety-six million, two hundred seventy-three thousand, seven hundred sixty-one".