84448440731 has 2 divisors, whose sum is σ = 84448440732. Its totient is φ = 84448440730.

The previous prime is 84448440691. The next prime is 84448440749. The reversal of 84448440731 is 13704484448.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84448440731 - 2⁶ = 84448440667 is a prime.

It is a super-2 number, since 2×84448440731² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84448460731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42224220365 + 42224220366.

It is an arithmetic number, because the mean of its divisors is an integer number (42224220366).

Almost surely, 2^84448440731 is an apocalyptic number.

84448440731 is a deficient number, since it is larger than the sum of its proper divisors (1).

84448440731 is an equidigital number, since it uses as much as digits as its factorization.

84448440731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1376256, while the sum is 47.

The spelling of 84448440731 in words is "eighty-four billion, four hundred forty-eight million, four hundred forty thousand, seven hundred thirty-one".