9721049342 has 8 divisors (see below), whose sum is σ = 15084387000. Its totient is φ = 4692920344.

The previous prime is 9721049309. The next prime is 9721049389. The reversal of 9721049342 is 2439401279.

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

It is a self number, because there is not a number n which added to its sum of digits gives 9721049342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83802092 + ... + 83802207.

It is an arithmetic number, because the mean of its divisors is an integer number (1885548375).

Almost surely, 2^9721049342 is an apocalyptic number.

9721049342 is a deficient number, since it is larger than the sum of its proper divisors (5363337658).

9721049342 is a wasteful number, since it uses less digits than its factorization.

9721049342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167604330.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 9721049342 is about 98595.3819506776. The cubic root of 9721049342 is about 2134.2127782337.

The spelling of 9721049342 in words is "nine billion, seven hundred twenty-one million, forty-nine thousand, three hundred forty-two".