905007022681 has 2 divisors, whose sum is σ = 905007022682. Its totient is φ = 905007022680.

The previous prime is 905007022651. The next prime is 905007022753. The reversal of 905007022681 is 186220700509.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 740819982681 + 164187040000 = 860709^2 + 405200^2 .

It is a cyclic number.

It is not a de Polignac number, because 905007022681 - 2¹⁷ = 905006891609 is a prime.

It is a super-2 number, since 2×905007022681² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (905007022651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452503511340 + 452503511341.

It is an arithmetic number, because the mean of its divisors is an integer number (452503511341).

Almost surely, 2^905007022681 is an apocalyptic number.

It is an amenable number.

905007022681 is a deficient number, since it is larger than the sum of its proper divisors (1).

905007022681 is an equidigital number, since it uses as much as digits as its factorization.

905007022681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 905007022681 in words is "nine hundred five billion, seven million, twenty-two thousand, six hundred eighty-one".