40135725105204 has 24 divisors (see below), whose sum is σ = 95047786818208. Its totient is φ = 13178894810400.

The previous prime is 40135725105163. The next prime is 40135725105209. The reversal of 40135725105204 is 40250152753104.

It is a super-2 number, since 2×40135725105204² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40135725105209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24960027247 + ... + 24960028854.

Almost surely, 2^{40135725105204} is an apocalyptic number.

It is an amenable number.

40135725105204 is an abundant number, since it is smaller than the sum of its proper divisors (54912061713004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40135725105204 is a wasteful number, since it uses less digits than its factorization.

40135725105204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49920056175 (or 49920056173 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 39.

Adding to 40135725105204 its reverse (40250152753104), we get a palindrome (80385877858308).

The spelling of 40135725105204 in words is "forty trillion, one hundred thirty-five billion, seven hundred twenty-five million, one hundred five thousand, two hundred four".