246462387431989 has 2 divisors, whose sum is σ = 246462387431990. Its totient is φ = 246462387431988.

The previous prime is 246462387431987. The next prime is 246462387432077. The reversal of 246462387431989 is 989134783264642.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162130766031364 + 84331621400625 = 12733058^2 + 9183225^2 .

It is a cyclic number.

It is not a de Polignac number, because 246462387431989 - 2¹ = 246462387431987 is a prime.

It is a super-2 number, since 2×246462387431989² (a number of 30 digits) contains 22 as substring.

Together with 246462387431987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (246462387431987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123231193715994 + 123231193715995.

It is an arithmetic number, because the mean of its divisors is an integer number (123231193715995).

Almost surely, 2^{246462387431989} is an apocalyptic number.

It is an amenable number.

246462387431989 is a deficient number, since it is larger than the sum of its proper divisors (1).

246462387431989 is an equidigital number, since it uses as much as digits as its factorization.

246462387431989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3009871872, while the sum is 76.

The spelling of 246462387431989 in words is "two hundred forty-six trillion, four hundred sixty-two billion, three hundred eighty-seven million, four hundred thirty-one thousand, nine hundred eighty-nine".