84731437573 has 2 divisors, whose sum is σ = 84731437574. Its totient is φ = 84731437572.

The previous prime is 84731437547. The next prime is 84731437601. The reversal of 84731437573 is 37573413748.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49729892004 + 35001545569 = 223002^2 + 187087^2 .

It is a cyclic number.

It is not a de Polignac number, because 84731437573 - 2²⁹ = 84194566661 is a prime.

It is a super-2 number, since 2×84731437573² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84731437573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84731437513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42365718786 + 42365718787.

It is an arithmetic number, because the mean of its divisors is an integer number (42365718787).

Almost surely, 2^84731437573 is an apocalyptic number.

It is an amenable number.

84731437573 is a deficient number, since it is larger than the sum of its proper divisors (1).

84731437573 is an equidigital number, since it uses as much as digits as its factorization.

84731437573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5927040, while the sum is 52.

The spelling of 84731437573 in words is "eighty-four billion, seven hundred thirty-one million, four hundred thirty-seven thousand, five hundred seventy-three".