6985885801 has 2 divisors, whose sum is σ = 6985885802. Its totient is φ = 6985885800.

The previous prime is 6985885793. The next prime is 6985885877. The reversal of 6985885801 is 1085885896.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5536104025 + 1449781776 = 74405^2 + 38076^2 .

It is a cyclic number.

It is not a de Polignac number, because 6985885801 - 2³ = 6985885793 is a prime.

It is a super-2 number, since 2×6985885801² = 97605200849226823202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6985885201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3492942900 + 3492942901.

It is an arithmetic number, because the mean of its divisors is an integer number (3492942901).

Almost surely, 2^6985885801 is an apocalyptic number.

It is an amenable number.

6985885801 is a deficient number, since it is larger than the sum of its proper divisors (1).

6985885801 is an equidigital number, since it uses as much as digits as its factorization.

6985885801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5529600, while the sum is 58.

The square root of 6985885801 is about 83581.6116200208. The cubic root of 6985885801 is about 1911.6446276187.

The spelling of 6985885801 in words is "six billion, nine hundred eighty-five million, eight hundred eighty-five thousand, eight hundred one".