59490673981 has 2 divisors, whose sum is σ = 59490673982. Its totient is φ = 59490673980.

The previous prime is 59490673939. The next prime is 59490673993. The reversal of 59490673981 is 18937609495.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48723498756 + 10767175225 = 220734^2 + 103765^2 .

It is a cyclic number.

It is not a de Polignac number, because 59490673981 - 2¹³ = 59490665789 is a prime.

It is a super-2 number, since 2×59490673981² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (59490673381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29745336990 + 29745336991.

It is an arithmetic number, because the mean of its divisors is an integer number (29745336991).

Almost surely, 2^59490673981 is an apocalyptic number.

It is an amenable number.

59490673981 is a deficient number, since it is larger than the sum of its proper divisors (1).

59490673981 is an equidigital number, since it uses as much as digits as its factorization.

59490673981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14696640, while the sum is 61.

The spelling of 59490673981 in words is "fifty-nine billion, four hundred ninety million, six hundred seventy-three thousand, nine hundred eighty-one".