145851975618 has 16 divisors (see below), whose sum is σ = 291882165120. Its totient is φ = 48587622896.

The previous prime is 145851975617. The next prime is 145851975641. The reversal of 145851975618 is 816579158541.

145851975618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (145851975617) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7414938 + ... + 7434581.

It is an arithmetic number, because the mean of its divisors is an integer number (18242635320).

Almost surely, 2^145851975618 is an apocalyptic number.

145851975618 is an abundant number, since it is smaller than the sum of its proper divisors (146030189502).

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

145851975618 is a wasteful number, since it uses less digits than its factorization.

145851975618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14851161.

The product of its digits is 12096000, while the sum is 60.

The spelling of 145851975618 in words is "one hundred forty-five billion, eight hundred fifty-one million, nine hundred seventy-five thousand, six hundred eighteen".