85429396123 has 2 divisors, whose sum is σ = 85429396124. Its totient is φ = 85429396122.

The previous prime is 85429396099. The next prime is 85429396127. The reversal of 85429396123 is 32169392458.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85429396123 - 2¹³ = 85429387931 is a prime.

It is a super-2 number, since 2×85429396123² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85429396127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42714698061 + 42714698062.

It is an arithmetic number, because the mean of its divisors is an integer number (42714698062).

Almost surely, 2^85429396123 is an apocalyptic number.

85429396123 is a deficient number, since it is larger than the sum of its proper divisors (1).

85429396123 is an equidigital number, since it uses as much as digits as its factorization.

85429396123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2799360, while the sum is 52.

The spelling of 85429396123 in words is "eighty-five billion, four hundred twenty-nine million, three hundred ninety-six thousand, one hundred twenty-three".