12420870389 has 8 divisors (see below), whose sum is σ = 12966404352. Its totient is φ = 11875794480.

The previous prime is 12420870379. The next prime is 12420870401. The reversal of 12420870389 is 98307802421.

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 12420870389 - 2¹⁶ = 12420804853 is a prime.

It is a super-2 number, since 2×12420870389² (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 (12420870379) 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, 58502 + ... + 168119.

It is an arithmetic number, because the mean of its divisors is an integer number (1620800544).

Almost surely, 2^12420870389 is an apocalyptic number.

It is an amenable number.

12420870389 is a deficient number, since it is larger than the sum of its proper divisors (545533963).

12420870389 is a wasteful number, since it uses less digits than its factorization.

12420870389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229027.

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 12420870389 in words is "twelve billion, four hundred twenty million, eight hundred seventy thousand, three hundred eighty-nine".