145461389818 has 48 divisors (see below), whose sum is σ = 237504061440. Its totient is φ = 66757092192.

The previous prime is 145461389813. The next prime is 145461389839. The reversal of 145461389818 is 818983164541.

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

It is not an unprimeable number, because it can be changed into a prime (145461389813) 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, 6373255 + ... + 6396037.

It is an arithmetic number, because the mean of its divisors is an integer number (4948001280).

Almost surely, 2^145461389818 is an apocalyptic number.

145461389818 is a deficient number, since it is larger than the sum of its proper divisors (92042671622).

145461389818 is a wasteful number, since it uses less digits than its factorization.

145461389818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23099 (or 23080 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 58.

The spelling of 145461389818 in words is "one hundred forty-five billion, four hundred sixty-one million, three hundred eighty-nine thousand, eight hundred eighteen".