10421720774 has 8 divisors (see below), whose sum is σ = 15633921888. Its totient is φ = 5210413480.

The previous prime is 10421720767. The next prime is 10421720819. The reversal of 10421720774 is 47702712401.

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

It is a super-2 number, since 2×10421720774² (a number of 21 digits) contains 22 as substring.

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, 193502 + ... + 241425.

It is an arithmetic number, because the mean of its divisors is an integer number (1954240236).

Almost surely, 2^10421720774 is an apocalyptic number.

10421720774 is a deficient number, since it is larger than the sum of its proper divisors (5212201114).

10421720774 is a wasteful number, since it uses less digits than its factorization.

10421720774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446910.

The product of its (nonzero) digits is 21952, while the sum is 35.

The spelling of 10421720774 in words is "ten billion, four hundred twenty-one million, seven hundred twenty thousand, seven hundred seventy-four".