15414254052421 has 16 divisors (see below), whose sum is σ = 19254237649920. Its totient is φ = 12033898525440.

The previous prime is 15414254052391. The next prime is 15414254052427. The reversal of 15414254052421 is 12425045241451.

It is a cyclic number.

It is not a de Polignac number, because 15414254052421 - 2¹⁹ = 15414253528133 is a prime.

It is a super-2 number, since 2×15414254052421² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15414254052427) 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, 2089214806 + ... + 2089222183.

It is an arithmetic number, because the mean of its divisors is an integer number (1203389853120).

Almost surely, 2^{15414254052421} is an apocalyptic number.

It is an amenable number.

15414254052421 is a deficient number, since it is larger than the sum of its proper divisors (3839983597499).

15414254052421 is a wasteful number, since it uses less digits than its factorization.

15414254052421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4178437044.

The product of its (nonzero) digits is 256000, while the sum is 40.

Adding to 15414254052421 its reverse (12425045241451), we get a palindrome (27839299293872).

The spelling of 15414254052421 in words is "fifteen trillion, four hundred fourteen billion, two hundred fifty-four million, fifty-two thousand, four hundred twenty-one".