146256473808 has 120 divisors (see below), whose sum is σ = 426396439040. Its totient is φ = 46746512640.

The previous prime is 146256473789. The next prime is 146256473809. The reversal of 146256473808 is 808374652641.

It is a happy number.

146256473808 is a `hidden beast` number, since 1 + 4 + 6 + 2 + 564 + 73 + 8 + 0 + 8 = 666.

It is a super-2 number, since 2×146256473808² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146256473809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 336285 + ... + 636867.

Almost surely, 2^146256473808 is an apocalyptic number.

146256473808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 146256473808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213198219520).

146256473808 is an abundant number, since it is smaller than the sum of its proper divisors (280139965232).

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

146256473808 is a wasteful number, since it uses less digits than its factorization.

146256473808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300737 (or 300728 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The spelling of 146256473808 in words is "one hundred forty-six billion, two hundred fifty-six million, four hundred seventy-three thousand, eight hundred eight".