63135887387 has 2 divisors, whose sum is σ = 63135887388. Its totient is φ = 63135887386.

The previous prime is 63135887383. The next prime is 63135887429. The reversal of 63135887387 is 78378853136.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63135887387 - 2² = 63135887383 is a prime.

It is a super-2 number, since 2×63135887387² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63135887383) 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 as a sum of consecutive naturals, namely, 31567943693 + 31567943694.

It is an arithmetic number, because the mean of its divisors is an integer number (31567943694).

Almost surely, 2^63135887387 is an apocalyptic number.

63135887387 is a deficient number, since it is larger than the sum of its proper divisors (1).

63135887387 is an equidigital number, since it uses as much as digits as its factorization.

63135887387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20321280, while the sum is 59.

The spelling of 63135887387 in words is "sixty-three billion, one hundred thirty-five million, eight hundred eighty-seven thousand, three hundred eighty-seven".