135637448361 has 8 divisors (see below), whose sum is σ = 191488162464. Its totient is φ = 85105849920.

The previous prime is 135637448321. The next prime is 135637448363. The reversal of 135637448361 is 163844736531.

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

It is not a de Polignac number, because 135637448361 - 2²⁹ = 135100577449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 2659557811 = 135637448361 / (1 + 3 + 5 + 6 + 3 + 7 + 4 + 4 + 8 + 3 + 6 + 1).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135637448363) 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, 1329778855 + ... + 1329778956.

It is an arithmetic number, because the mean of its divisors is an integer number (23936020308).

Almost surely, 2^135637448361 is an apocalyptic number.

It is an amenable number.

135637448361 is a deficient number, since it is larger than the sum of its proper divisors (55850714103).

135637448361 is a wasteful number, since it uses less digits than its factorization.

135637448361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659557831.

The product of its digits is 4354560, while the sum is 51.

The spelling of 135637448361 in words is "one hundred thirty-five billion, six hundred thirty-seven million, four hundred forty-eight thousand, three hundred sixty-one".