83881650901 has 2 divisors, whose sum is σ = 83881650902. Its totient is φ = 83881650900.

The previous prime is 83881650863. The next prime is 83881650907. The reversal of 83881650901 is 10905618838.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42020900100 + 41860750801 = 204990^2 + 204599^2 .

It is a cyclic number.

It is not a de Polignac number, because 83881650901 - 2³⁵ = 49521912533 is a prime.

It is a super-2 number, since 2×83881650901² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83881650907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41940825450 + 41940825451.

It is an arithmetic number, because the mean of its divisors is an integer number (41940825451).

Almost surely, 2^83881650901 is an apocalyptic number.

It is an amenable number.

83881650901 is a deficient number, since it is larger than the sum of its proper divisors (1).

83881650901 is an equidigital number, since it uses as much as digits as its factorization.

83881650901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 49.

The spelling of 83881650901 in words is "eighty-three billion, eight hundred eighty-one million, six hundred fifty thousand, nine hundred one".