84012246431 has 2 divisors, whose sum is σ = 84012246432. Its totient is φ = 84012246430.

The previous prime is 84012246419. The next prime is 84012246463. The reversal of 84012246431 is 13464221048.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84012246431 - 2²² = 84008052127 is a prime.

It is a super-2 number, since 2×84012246431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 84012246391 and 84012246400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84012246491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42006123215 + 42006123216.

It is an arithmetic number, because the mean of its divisors is an integer number (42006123216).

Almost surely, 2^84012246431 is an apocalyptic number.

84012246431 is a deficient number, since it is larger than the sum of its proper divisors (1).

84012246431 is an equidigital number, since it uses as much as digits as its factorization.

84012246431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 35.

Adding to 84012246431 its reverse (13464221048), we get a palindrome (97476467479).

The spelling of 84012246431 in words is "eighty-four billion, twelve million, two hundred forty-six thousand, four hundred thirty-one".