15421402214207 has 8 divisors (see below), whose sum is σ = 16869188059392. Its totient is φ = 13981256400600.

The previous prime is 15421402214203. The next prime is 15421402214213. The reversal of 15421402214207 is 70241220412451.

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 15421402214207 - 2² = 15421402214203 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 (15421402214201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1910003669 + ... + 1910011742.

It is an arithmetic number, because the mean of its divisors is an integer number (2108648507424).

Almost surely, 2^{15421402214207} is an apocalyptic number.

15421402214207 is a deficient number, since it is larger than the sum of its proper divisors (1447785845185).

15421402214207 is a wasteful number, since it uses less digits than its factorization.

15421402214207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820015789.

The product of its (nonzero) digits is 35840, while the sum is 35.

Adding to 15421402214207 its reverse (70241220412451), we get a palindrome (85662622626658).

The spelling of 15421402214207 in words is "fifteen trillion, four hundred twenty-one billion, four hundred two million, two hundred fourteen thousand, two hundred seven".