138573573453 has 24 divisors (see below), whose sum is σ = 228846384000. Its totient is φ = 79153742304.

The previous prime is 138573573431. The next prime is 138573573469. The reversal of 138573573453 is 354375375831.

138573573453 is a `hidden beast` number, since 1 + 38 + 573 + 5 + 7 + 34 + 5 + 3 = 666.

It is not a de Polignac number, because 138573573453 - 2⁶ = 138573573389 is a prime.

It is a super-3 number, since 3×138573573453³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 138573573453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138573573473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 270873 + ... + 592046.

It is an arithmetic number, because the mean of its divisors is an integer number (9535266000).

Almost surely, 2^138573573453 is an apocalyptic number.

It is an amenable number.

138573573453 is a deficient number, since it is larger than the sum of its proper divisors (90272810547).

138573573453 is a wasteful number, since it uses less digits than its factorization.

138573573453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865481 (or 865478 counting only the distinct ones).

The product of its digits is 15876000, while the sum is 54.

The spelling of 138573573453 in words is "one hundred thirty-eight billion, five hundred seventy-three million, five hundred seventy-three thousand, four hundred fifty-three".