909140914057 has 2 divisors, whose sum is σ = 909140914058. Its totient is φ = 909140914056.

The previous prime is 909140914009. The next prime is 909140914103. The reversal of 909140914057 is 750419041909.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 820363136121 + 88777777936 = 905739^2 + 297956^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-909140914057 is a prime.

It is a super-2 number, since 2×909140914057² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 909140914057.

It is not a weakly prime, because it can be changed into another prime (909140914007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454570457028 + 454570457029.

It is an arithmetic number, because the mean of its divisors is an integer number (454570457029).

Almost surely, 2^909140914057 is an apocalyptic number.

It is an amenable number.

909140914057 is a deficient number, since it is larger than the sum of its proper divisors (1).

909140914057 is an equidigital number, since it uses as much as digits as its factorization.

909140914057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 49.

The spelling of 909140914057 in words is "nine hundred nine billion, one hundred forty million, nine hundred fourteen thousand, fifty-seven".