13025834981 has 2 divisors, whose sum is σ = 13025834982. Its totient is φ = 13025834980.

The previous prime is 13025834971. The next prime is 13025835029. The reversal of 13025834981 is 18943852031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12163884100 + 861950881 = 110290^2 + 29359^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13025834981 is a prime.

It is a super-2 number, since 2×13025834981² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13025834971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6512917490 + 6512917491.

It is an arithmetic number, because the mean of its divisors is an integer number (6512917491).

Almost surely, 2^13025834981 is an apocalyptic number.

It is an amenable number.

13025834981 is a deficient number, since it is larger than the sum of its proper divisors (1).

13025834981 is an equidigital number, since it uses as much as digits as its factorization.

13025834981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 44.

The spelling of 13025834981 in words is "thirteen billion, twenty-five million, eight hundred thirty-four thousand, nine hundred eighty-one".