14087511421 has 2 divisors, whose sum is σ = 14087511422. Its totient is φ = 14087511420.

The previous prime is 14087511407. The next prime is 14087511433. The reversal of 14087511421 is 12411578041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9129802500 + 4957708921 = 95550^2 + 70411^2 .

It is a cyclic number.

It is not a de Polignac number, because 14087511421 - 2¹³ = 14087503229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14087511821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7043755710 + 7043755711.

It is an arithmetic number, because the mean of its divisors is an integer number (7043755711).

Almost surely, 2^14087511421 is an apocalyptic number.

It is an amenable number.

14087511421 is a deficient number, since it is larger than the sum of its proper divisors (1).

14087511421 is an equidigital number, since it uses as much as digits as its factorization.

14087511421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 34.

The spelling of 14087511421 in words is "fourteen billion, eighty-seven million, five hundred eleven thousand, four hundred twenty-one".