13421200393837 has 2 divisors, whose sum is σ = 13421200393838. Its totient is φ = 13421200393836.

The previous prime is 13421200393831. The next prime is 13421200393841. The reversal of 13421200393837 is 73839300212431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12789356640841 + 631843752996 = 3576221^2 + 794886^2 .

It is a cyclic number.

It is not a de Polignac number, because 13421200393837 - 2¹⁹ = 13421199869549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13421200393831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6710600196918 + 6710600196919.

It is an arithmetic number, because the mean of its divisors is an integer number (6710600196919).

Almost surely, 2^{13421200393837} is an apocalyptic number.

It is an amenable number.

13421200393837 is a deficient number, since it is larger than the sum of its proper divisors (1).

13421200393837 is an equidigital number, since it uses as much as digits as its factorization.

13421200393837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 46.

The spelling of 13421200393837 in words is "thirteen trillion, four hundred twenty-one billion, two hundred million, three hundred ninety-three thousand, eight hundred thirty-seven".