10557421859 has 8 divisors (see below), whose sum is σ = 10783506240. Its totient is φ = 10331398336.

The previous prime is 10557421811. The next prime is 10557421871. The reversal of 10557421859 is 95812475501.

It is a happy number.

10557421859 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 10557421859 - 2²⁸ = 10288986403 is a prime.

It is a super-2 number, since 2×10557421859² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10557421559) 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 7 ways as a sum of consecutive naturals, for example, 588677 + ... + 606345.

It is an arithmetic number, because the mean of its divisors is an integer number (1347938280).

Almost surely, 2^10557421859 is an apocalyptic number.

10557421859 is a deficient number, since it is larger than the sum of its proper divisors (226084381).

10557421859 is a wasteful number, since it uses less digits than its factorization.

10557421859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30429.

The product of its (nonzero) digits is 504000, while the sum is 47.

The spelling of 10557421859 in words is "ten billion, five hundred fifty-seven million, four hundred twenty-one thousand, eight hundred fifty-nine".