145785129783 has 16 divisors (see below), whose sum is σ = 195576353280. Its totient is φ = 96592188896.

The previous prime is 145785129781. The next prime is 145785129823. The reversal of 145785129783 is 387921587541.

It is a cyclic number.

It is not a de Polignac number, because 145785129783 - 2¹ = 145785129781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145785129781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3550213 + ... + 3591041.

It is an arithmetic number, because the mean of its divisors is an integer number (12223522080).

Almost surely, 2^145785129783 is an apocalyptic number.

145785129783 is a deficient number, since it is larger than the sum of its proper divisors (49791223497).

145785129783 is a wasteful number, since it uses less digits than its factorization.

145785129783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48126.

The product of its digits is 16934400, while the sum is 60.

The spelling of 145785129783 in words is "one hundred forty-five billion, seven hundred eighty-five million, one hundred twenty-nine thousand, seven hundred eighty-three".