12445021415 has 8 divisors (see below), whose sum is σ = 14949901728. Its totient is φ = 9945433120.

The previous prime is 12445021367. The next prime is 12445021487. The reversal of 12445021415 is 51412054421.

It is a happy number.

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

It is not a de Polignac number, because 12445021415 - 2⁸ = 12445021159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1317827 + ... + 1327236.

It is an arithmetic number, because the mean of its divisors is an integer number (1868737716).

Almost surely, 2^12445021415 is an apocalyptic number.

12445021415 is a deficient number, since it is larger than the sum of its proper divisors (2504880313).

12445021415 is an equidigital number, since it uses as much as digits as its factorization.

12445021415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2646009.

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 12445021415 its reverse (51412054421), we get a palindrome (63857075836).

The spelling of 12445021415 in words is "twelve billion, four hundred forty-five million, twenty-one thousand, four hundred fifteen".