145653684791 has 32 divisors (see below), whose sum is σ = 154296852480. Its totient is φ = 137314944000.

The previous prime is 145653684749. The next prime is 145653684793. The reversal of 145653684791 is 197486356541.

It is a cyclic number.

It is not a de Polignac number, because 145653684791 - 2⁶ = 145653684727 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145653684791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145653684793) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85829255 + ... + 85830951.

It is an arithmetic number, because the mean of its divisors is an integer number (4821776640).

Almost surely, 2^145653684791 is an apocalyptic number.

145653684791 is a deficient number, since it is larger than the sum of its proper divisors (8643167689).

145653684791 is a wasteful number, since it uses less digits than its factorization.

145653684791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2255.

The product of its digits is 21772800, while the sum is 59.

The spelling of 145653684791 in words is "one hundred forty-five billion, six hundred fifty-three million, six hundred eighty-four thousand, seven hundred ninety-one".