84249962369 has 2 divisors, whose sum is σ = 84249962370. Its totient is φ = 84249962368.

The previous prime is 84249962359. The next prime is 84249962429. The reversal of 84249962369 is 96326994248.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67849830400 + 16400131969 = 260480^2 + 128063^2 .

It is a cyclic number.

It is not a de Polignac number, because 84249962369 - 2⁴ = 84249962353 is a prime.

It is a super-2 number, since 2×84249962369² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84249962309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42124981184 + 42124981185.

It is an arithmetic number, because the mean of its divisors is an integer number (42124981185).

Almost surely, 2^84249962369 is an apocalyptic number.

It is an amenable number.

84249962369 is a deficient number, since it is larger than the sum of its proper divisors (1).

84249962369 is an equidigital number, since it uses as much as digits as its factorization.

84249962369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40310784, while the sum is 62.

The spelling of 84249962369 in words is "eighty-four billion, two hundred forty-nine million, nine hundred sixty-two thousand, three hundred sixty-nine".