10721810047 has 12 divisors (see below), whose sum is σ = 11623998960. Its totient is φ = 9885128448.

The previous prime is 10721810041. The next prime is 10721810051. The reversal of 10721810047 is 74001812701.

It is not a de Polignac number, because 10721810047 - 2³¹ = 8574326399 is a prime.

It is a super-2 number, since 2×10721810047² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10721810041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103983 + ... + 179599.

It is an arithmetic number, because the mean of its divisors is an integer number (968666580).

Almost surely, 2^10721810047 is an apocalyptic number.

10721810047 is a deficient number, since it is larger than the sum of its proper divisors (902188913).

10721810047 is an equidigital number, since it uses as much as digits as its factorization.

10721810047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76482 (or 76469 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 31.

The spelling of 10721810047 in words is "ten billion, seven hundred twenty-one million, eight hundred ten thousand, forty-seven".