85840118007402 has 128 divisors (see below), whose sum is σ = 197472415795200. Its totient is φ = 24602157216000.

The previous prime is 85840118007373. The next prime is 85840118007403. The reversal of 85840118007402 is 20470081104858.

It is a super-2 number, since 2×85840118007402² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85840118007403) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4956976848 + ... + 4956994164.

It is an arithmetic number, because the mean of its divisors is an integer number (1542753248400).

Almost surely, 2^{85840118007402} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85840118007402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98736207897600).

85840118007402 is an abundant number, since it is smaller than the sum of its proper divisors (111632297787798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85840118007402 is a wasteful number, since it uses less digits than its factorization.

85840118007402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23692.

The product of its (nonzero) digits is 573440, while the sum is 48.

The spelling of 85840118007402 in words is "eighty-five trillion, eight hundred forty billion, one hundred eighteen million, seven thousand, four hundred two".