145310875805638 has 8 divisors (see below), whose sum is σ = 217966446896832. Its totient is φ = 72655393506696.

The previous prime is 145310875805611. The next prime is 145310875805653. The reversal of 145310875805638 is 836508578013541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×145310875805638² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145310875805638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17943670 + ... + 24750697.

It is an arithmetic number, because the mean of its divisors is an integer number (27245805862104).

Almost surely, 2^{145310875805638} is an apocalyptic number.

145310875805638 is a deficient number, since it is larger than the sum of its proper divisors (72655571091194).

145310875805638 is a wasteful number, since it uses less digits than its factorization.

145310875805638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44396126.

The product of its (nonzero) digits is 96768000, while the sum is 64.

The spelling of 145310875805638 in words is "one hundred forty-five trillion, three hundred ten billion, eight hundred seventy-five million, eight hundred five thousand, six hundred thirty-eight".