81037483259 has 2 divisors, whose sum is σ = 81037483260. Its totient is φ = 81037483258.

The previous prime is 81037483229. The next prime is 81037483283. The reversal of 81037483259 is 95238473018.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 81037483259 - 2⁸ = 81037483003 is a prime.

It is a super-2 number, since 2×81037483259² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (81037483229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40518741629 + 40518741630.

It is an arithmetic number, because the mean of its divisors is an integer number (40518741630).

Almost surely, 2^81037483259 is an apocalyptic number.

81037483259 is a deficient number, since it is larger than the sum of its proper divisors (1).

81037483259 is an equidigital number, since it uses as much as digits as its factorization.

81037483259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 81037483259 in words is "eighty-one billion, thirty-seven million, four hundred eighty-three thousand, two hundred fifty-nine".