9729206231504 has 40 divisors (see below), whose sum is σ = 19964370823488. Its totient is φ = 4577259363840.

The previous prime is 9729206231491. The next prime is 9729206231509. The reversal of 9729206231504 is 4051326029279.

It is a happy number.

It is a super-3 number, since 3×9729206231504³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9729206231509) 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, 3602582 + ... + 5695349.

Almost surely, 2^{9729206231504} is an apocalyptic number.

It is an amenable number.

9729206231504 is an abundant number, since it is smaller than the sum of its proper divisors (10235164591984).

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

9729206231504 is a wasteful number, since it uses less digits than its factorization.

9729206231504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9301803 (or 9301797 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 9729206231504 in words is "nine trillion, seven hundred twenty-nine billion, two hundred six million, two hundred thirty-one thousand, five hundred four".