17412952981 has 2 divisors, whose sum is σ = 17412952982. Its totient is φ = 17412952980.

The previous prime is 17412952961. The next prime is 17412953021. The reversal of 17412952981 is 18925921471.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14216746756 + 3196206225 = 119234^2 + 56535^2 .

It is a cyclic number.

It is not a de Polignac number, because 17412952981 - 2⁷ = 17412952853 is a prime.

It is a super-2 number, since 2×17412952981² (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 (17412952951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8706476490 + 8706476491.

It is an arithmetic number, because the mean of its divisors is an integer number (8706476491).

Almost surely, 2^17412952981 is an apocalyptic number.

It is an amenable number.

17412952981 is a deficient number, since it is larger than the sum of its proper divisors (1).

17412952981 is an equidigital number, since it uses as much as digits as its factorization.

17412952981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 49.

The spelling of 17412952981 in words is "seventeen billion, four hundred twelve million, nine hundred fifty-two thousand, nine hundred eighty-one".