291672362441 has 2 divisors, whose sum is σ = 291672362442. Its totient is φ = 291672362440.

The previous prime is 291672362431. The next prime is 291672362477. The reversal of 291672362441 is 144263276192.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229149860416 + 62522502025 = 478696^2 + 250045^2 .

It is a cyclic number.

It is not a de Polignac number, because 291672362441 - 2¹⁴ = 291672346057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (291672362431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145836181220 + 145836181221.

It is an arithmetic number, because the mean of its divisors is an integer number (145836181221).

Almost surely, 2^291672362441 is an apocalyptic number.

It is an amenable number.

291672362441 is a deficient number, since it is larger than the sum of its proper divisors (1).

291672362441 is an equidigital number, since it uses as much as digits as its factorization.

291672362441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 47.

The spelling of 291672362441 in words is "two hundred ninety-one billion, six hundred seventy-two million, three hundred sixty-two thousand, four hundred forty-one".