85391468422 has 32 divisors (see below), whose sum is σ = 141631560000. Its totient is φ = 38361185280.

The previous prime is 85391468417. The next prime is 85391468423. The reversal of 85391468422 is 22486419358.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 85391468422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85391468423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 369079 + ... + 554077.

It is an arithmetic number, because the mean of its divisors is an integer number (4425986250).

Almost surely, 2^85391468422 is an apocalyptic number.

85391468422 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

85391468422 is a deficient number, since it is larger than the sum of its proper divisors (56240091578).

85391468422 is a wasteful number, since it uses less digits than its factorization.

85391468422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185488.

The product of its digits is 3317760, while the sum is 52.

The spelling of 85391468422 in words is "eighty-five billion, three hundred ninety-one million, four hundred sixty-eight thousand, four hundred twenty-two".