909611249941 has 2 divisors, whose sum is σ = 909611249942. Its totient is φ = 909611249940.

The previous prime is 909611249893. The next prime is 909611250131. The reversal of 909611249941 is 149942116909.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 635615535025 + 273995714916 = 797255^2 + 523446^2 .

It is a cyclic number.

It is not a de Polignac number, because 909611249941 - 2²⁷ = 909477032213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (909611219941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454805624970 + 454805624971.

It is an arithmetic number, because the mean of its divisors is an integer number (454805624971).

Almost surely, 2^909611249941 is an apocalyptic number.

It is an amenable number.

909611249941 is a deficient number, since it is larger than the sum of its proper divisors (1).

909611249941 is an equidigital number, since it uses as much as digits as its factorization.

909611249941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1259712, while the sum is 55.

The spelling of 909611249941 in words is "nine hundred nine billion, six hundred eleven million, two hundred forty-nine thousand, nine hundred forty-one".