146531887780 has 48 divisors (see below), whose sum is σ = 330804391680. Its totient is φ = 54346422528.

The previous prime is 146531887687. The next prime is 146531887807. The reversal of 146531887780 is 87788135641.

146531887780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4084377 + ... + 4120096.

It is an arithmetic number, because the mean of its divisors is an integer number (6891758160).

Almost surely, 2^146531887780 is an apocalyptic number.

146531887780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

146531887780 is an abundant number, since it is smaller than the sum of its proper divisors (184272503900).

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

146531887780 is a wasteful number, since it uses less digits than its factorization.

146531887780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8204548 (or 8204546 counting only the distinct ones).

The product of its (nonzero) digits is 9031680, while the sum is 58.

The spelling of 146531887780 in words is "one hundred forty-six billion, five hundred thirty-one million, eight hundred eighty-seven thousand, seven hundred eighty".