10721420453 has 8 divisors (see below), whose sum is σ = 11326453920. Its totient is φ = 10120461840.

The previous prime is 10721420443. The next prime is 10721420461. The reversal of 10721420453 is 35402412701.

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

It is a cyclic number.

It is not a de Polignac number, because 10721420453 - 2⁶ = 10721420389 is a prime.

It is a super-2 number, since 2×10721420453² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10721420443) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1013303 + ... + 1023828.

It is an arithmetic number, because the mean of its divisors is an integer number (1415806740).

Almost surely, 2^10721420453 is an apocalyptic number.

It is an amenable number.

10721420453 is a deficient number, since it is larger than the sum of its proper divisors (605033467).

10721420453 is a wasteful number, since it uses less digits than its factorization.

10721420453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037427.

The product of its (nonzero) digits is 6720, while the sum is 29.

The spelling of 10721420453 in words is "ten billion, seven hundred twenty-one million, four hundred twenty thousand, four hundred fifty-three".