145638812788 has 24 divisors (see below), whose sum is σ = 291926376000. Its totient is φ = 62277616128.

The previous prime is 145638812747. The next prime is 145638812791. The reversal of 145638812788 is 887218836541.

It is a happy number.

145638812788 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145638812788² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5779618 + ... + 5804761.

It is an arithmetic number, because the mean of its divisors is an integer number (12163599000).

Almost surely, 2^145638812788 is an apocalyptic number.

It is an amenable number.

145638812788 is an abundant number, since it is smaller than the sum of its proper divisors (146287563212).

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

145638812788 is a wasteful number, since it uses less digits than its factorization.

145638812788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11584839 (or 11584837 counting only the distinct ones).

The product of its digits is 20643840, while the sum is 61.

The spelling of 145638812788 in words is "one hundred forty-five billion, six hundred thirty-eight million, eight hundred twelve thousand, seven hundred eighty-eight".