145777789136 has 40 divisors (see below), whose sum is σ = 329661638400. Its totient is φ = 61146912384.

The previous prime is 145777789109. The next prime is 145777789187. The reversal of 145777789136 is 631987777541.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13841411 + ... + 13851938.

It is an arithmetic number, because the mean of its divisors is an integer number (8241540960).

Almost surely, 2^145777789136 is an apocalyptic number.

145777789136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

145777789136 is an abundant number, since it is smaller than the sum of its proper divisors (183883849264).

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

145777789136 is a wasteful number, since it uses less digits than its factorization.

145777789136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27693411 (or 27693405 counting only the distinct ones).

The product of its digits is 62233920, while the sum is 65.

The spelling of 145777789136 in words is "one hundred forty-five billion, seven hundred seventy-seven million, seven hundred eighty-nine thousand, one hundred thirty-six".