162825407890 has 32 divisors (see below), whose sum is σ = 326659029120. Its totient is φ = 58072713984.

The previous prime is 162825407881. The next prime is 162825407893. The reversal of 162825407890 is 98704528261.

It is a super-2 number, since 2×162825407890² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (162825407893) 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, 25201942 + ... + 25208401.

It is an arithmetic number, because the mean of its divisors is an integer number (10208094660).

Almost surely, 2^162825407890 is an apocalyptic number.

162825407890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

162825407890 is an abundant number, since it is smaller than the sum of its proper divisors (163833621230).

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

162825407890 is a wasteful number, since it uses less digits than its factorization.

162825407890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50410386.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 162825407890 in words is "one hundred sixty-two billion, eight hundred twenty-five million, four hundred seven thousand, eight hundred ninety".