985496695621 has 2 divisors, whose sum is σ = 985496695622. Its totient is φ = 985496695620.

The previous prime is 985496695567. The next prime is 985496695697. The reversal of 985496695621 is 126596694589.

985496695621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 629624793121 + 355871902500 = 793489^2 + 596550^2 .

It is a cyclic number.

It is not a de Polignac number, because 985496695621 - 2³⁷ = 848057742149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985496698621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492748347810 + 492748347811.

It is an arithmetic number, because the mean of its divisors is an integer number (492748347811).

Almost surely, 2^985496695621 is an apocalyptic number.

It is an amenable number.

985496695621 is a deficient number, since it is larger than the sum of its proper divisors (1).

985496695621 is an equidigital number, since it uses as much as digits as its factorization.

985496695621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 251942400, while the sum is 70.

The spelling of 985496695621 in words is "nine hundred eighty-five billion, four hundred ninety-six million, six hundred ninety-five thousand, six hundred twenty-one".