83473581881 has 2 divisors, whose sum is σ = 83473581882. Its totient is φ = 83473581880.

The previous prime is 83473581857. The next prime is 83473581889. The reversal of 83473581881 is 18818537438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81202201600 + 2271380281 = 284960^2 + 47659^2 .

It is a cyclic number.

It is not a de Polignac number, because 83473581881 - 2¹⁰ = 83473580857 is a prime.

It is a super-2 number, since 2×83473581881² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (83473581889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41736790940 + 41736790941.

It is an arithmetic number, because the mean of its divisors is an integer number (41736790941).

Almost surely, 2^83473581881 is an apocalyptic number.

It is an amenable number.

83473581881 is a deficient number, since it is larger than the sum of its proper divisors (1).

83473581881 is an equidigital number, since it uses as much as digits as its factorization.

83473581881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5160960, while the sum is 56.

The spelling of 83473581881 in words is "eighty-three billion, four hundred seventy-three million, five hundred eighty-one thousand, eight hundred eighty-one".