36421519513 has 2 divisors, whose sum is σ = 36421519514. Its totient is φ = 36421519512.

The previous prime is 36421519499. The next prime is 36421519553. The reversal of 36421519513 is 31591512463.

It is a happy number.

It is an a-pointer prime, because the next prime (36421519553) can be obtained adding 36421519513 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36201531289 + 219988224 = 190267^2 + 14832^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36421519513 is a prime.

It is not a weakly prime, because it can be changed into another prime (36421519553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18210759756 + 18210759757.

It is an arithmetic number, because the mean of its divisors is an integer number (18210759757).

Almost surely, 2^36421519513 is an apocalyptic number.

It is an amenable number.

36421519513 is a deficient number, since it is larger than the sum of its proper divisors (1).

36421519513 is an equidigital number, since it uses as much as digits as its factorization.

36421519513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 40.

The spelling of 36421519513 in words is "thirty-six billion, four hundred twenty-one million, five hundred nineteen thousand, five hundred thirteen".