10721913842 has 8 divisors (see below), whose sum is σ = 16085338032. Its totient is φ = 5360134500.

The previous prime is 10721913823. The next prime is 10721913847. The reversal of 10721913842 is 24831912701.

It is a happy number.

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

It is a super-2 number, since 2×10721913842² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10721913796 and 10721913805.

It is not an unprimeable number, because it can be changed into a prime (10721913847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394784 + ... + 421067.

It is an arithmetic number, because the mean of its divisors is an integer number (2010667254).

Almost surely, 2^10721913842 is an apocalyptic number.

10721913842 is a deficient number, since it is larger than the sum of its proper divisors (5363424190).

10721913842 is an equidigital number, since it uses as much as digits as its factorization.

10721913842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822424.

The product of its (nonzero) digits is 24192, while the sum is 38.

The spelling of 10721913842 in words is "ten billion, seven hundred twenty-one million, nine hundred thirteen thousand, eight hundred forty-two".