811150487417 has 2 divisors, whose sum is σ = 811150487418. Its totient is φ = 811150487416.

The previous prime is 811150487383. The next prime is 811150487479. The reversal of 811150487417 is 714784051118.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 705875546896 + 105274940521 = 840164^2 + 324461^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-811150487417 is a prime.

It is a super-2 number, since 2×811150487417² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (811150487117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405575243708 + 405575243709.

It is an arithmetic number, because the mean of its divisors is an integer number (405575243709).

Almost surely, 2^811150487417 is an apocalyptic number.

It is an amenable number.

811150487417 is a deficient number, since it is larger than the sum of its proper divisors (1).

811150487417 is an equidigital number, since it uses as much as digits as its factorization.

811150487417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 250880, while the sum is 47.

The spelling of 811150487417 in words is "eight hundred eleven billion, one hundred fifty million, four hundred eighty-seven thousand, four hundred seventeen".