9512986381 has 2 divisors, whose sum is σ = 9512986382. Its totient is φ = 9512986380.

The previous prime is 9512986331. The next prime is 9512986393. The reversal of 9512986381 is 1836892159.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9512100900 + 885481 = 97530^2 + 941^2 .

It is an emirp because it is prime and its reverse (1836892159) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9512986381 - 2¹⁷ = 9512855309 is a prime.

It is a super-2 number, since 2×9512986381² (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 (9512986321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4756493190 + 4756493191.

It is an arithmetic number, because the mean of its divisors is an integer number (4756493191).

Almost surely, 2^9512986381 is an apocalyptic number.

It is an amenable number.

9512986381 is a deficient number, since it is larger than the sum of its proper divisors (1).

9512986381 is an equidigital number, since it uses as much as digits as its factorization.

9512986381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 52.

The square root of 9512986381 is about 97534.5394257850. The cubic root of 9512986381 is about 2118.8764056861.

The spelling of 9512986381 in words is "nine billion, five hundred twelve million, nine hundred eighty-six thousand, three hundred eighty-one".