10345478821 has 16 divisors (see below), whose sum is σ = 11190816000. Its totient is φ = 9534526848.

The previous prime is 10345478807. The next prime is 10345478827. The reversal of 10345478821 is 12887454301.

10345478821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10345478821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10345478827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308905 + ... + 340753.

It is an arithmetic number, because the mean of its divisors is an integer number (699426000).

Almost surely, 2^10345478821 is an apocalyptic number.

It is an amenable number.

10345478821 is a deficient number, since it is larger than the sum of its proper divisors (845337179).

10345478821 is a wasteful number, since it uses less digits than its factorization.

10345478821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32388.

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 10345478821 in words is "ten billion, three hundred forty-five million, four hundred seventy-eight thousand, eight hundred twenty-one".