135717296420 has 24 divisors (see below), whose sum is σ = 285033168000. Its totient is φ = 54281805152.

The previous prime is 135717296389. The next prime is 135717296423. The reversal of 135717296420 is 24692717531.

It is not an unprimeable number, because it can be changed into a prime (135717296423) 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, 98210 + ... + 530169.

It is an arithmetic number, because the mean of its divisors is an integer number (11876382000).

Almost surely, 2^135717296420 is an apocalyptic number.

135717296420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135717296420 is an abundant number, since it is smaller than the sum of its proper divisors (149315871580).

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

135717296420 is a wasteful number, since it uses less digits than its factorization.

135717296420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639187 (or 639185 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 135717296420 in words is "one hundred thirty-five billion, seven hundred seventeen million, two hundred ninety-six thousand, four hundred twenty".