9725744135 has 8 divisors (see below), whose sum is σ = 11779967376. Its totient is φ = 7707879040.

The previous prime is 9725744129. The next prime is 9725744141. The reversal of 9725744135 is 5314475279.

It is an interprime number because it is at equal distance from previous prime (9725744129) and next prime (9725744141).

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

It is not a de Polignac number, because 9725744135 - 2⁶ = 9725744071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9725744135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9088946 + ... + 9090015.

It is an arithmetic number, because the mean of its divisors is an integer number (1472495922).

Almost surely, 2^9725744135 is an apocalyptic number.

9725744135 is a deficient number, since it is larger than the sum of its proper divisors (2054223241).

9725744135 is a wasteful number, since it uses less digits than its factorization.

9725744135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18179073.

The product of its digits is 1058400, while the sum is 47.

The square root of 9725744135 is about 98619.1874586279. The cubic root of 9725744135 is about 2134.5562965202.

The spelling of 9725744135 in words is "nine billion, seven hundred twenty-five million, seven hundred forty-four thousand, one hundred thirty-five".