135772358649 has 8 divisors (see below), whose sum is σ = 181045611552. Its totient is φ = 90507005760.

The previous prime is 135772358587. The next prime is 135772358653. The reversal of 135772358649 is 946853277531.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-135772358649 is a prime.

It is a super-2 number, since 2×135772358649² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 135772358592 and 135772358601.

It is not an unprimeable number, because it can be changed into a prime (135772358149) 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, 1934784 + ... + 2003729.

It is an arithmetic number, because the mean of its divisors is an integer number (22630701444).

Almost surely, 2^135772358649 is an apocalyptic number.

It is an amenable number.

135772358649 is a deficient number, since it is larger than the sum of its proper divisors (45273252903).

135772358649 is a wasteful number, since it uses less digits than its factorization.

135772358649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3950007.

The product of its digits is 38102400, while the sum is 60.

The spelling of 135772358649 in words is "one hundred thirty-five billion, seven hundred seventy-two million, three hundred fifty-eight thousand, six hundred forty-nine".