135748631853 has 24 divisors (see below), whose sum is σ = 197423448768. Its totient is φ = 89880585792.

The previous prime is 135748631839. The next prime is 135748631869. The reversal of 135748631853 is 358136847531.

135748631853 is a `hidden beast` number, since 1 + 3 + 57 + 486 + 31 + 85 + 3 = 666.

It is not a de Polignac number, because 135748631853 - 2¹² = 135748627757 is a prime.

It is a super-2 number, since 2×135748631853² (a number of 23 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 135748631853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135748631653) 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, 1755226 + ... + 1830932.

It is an arithmetic number, because the mean of its divisors is an integer number (8225977032).

Almost surely, 2^135748631853 is an apocalyptic number.

It is an amenable number.

135748631853 is a deficient number, since it is larger than the sum of its proper divisors (61674816915).

135748631853 is a wasteful number, since it uses less digits than its factorization.

135748631853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77073 (or 77070 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 135748631853 in words is "one hundred thirty-five billion, seven hundred forty-eight million, six hundred thirty-one thousand, eight hundred fifty-three".