135722269438 has 32 divisors (see below), whose sum is σ = 238573972224. Its totient is φ = 56707782912.

The previous prime is 135722269433. The next prime is 135722269439. The reversal of 135722269438 is 834962227531.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135722269433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654856 + ... + 836827.

It is an arithmetic number, because the mean of its divisors is an integer number (7455436632).

Almost surely, 2^135722269438 is an apocalyptic number.

135722269438 is a deficient number, since it is larger than the sum of its proper divisors (102851702786).

135722269438 is a wasteful number, since it uses less digits than its factorization.

135722269438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491856.

The product of its digits is 4354560, while the sum is 52.

The spelling of 135722269438 in words is "one hundred thirty-five billion, seven hundred twenty-two million, two hundred sixty-nine thousand, four hundred thirty-eight".