63136263431 has 4 divisors (see below), whose sum is σ = 63370971000. Its totient is φ = 62901555864.

The previous prime is 63136263401. The next prime is 63136263469. The reversal of 63136263431 is 13436263136.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63136263431 is a prime.

It is a super-2 number, since 2×63136263431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63136263401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117353381 + ... + 117353918.

It is an arithmetic number, because the mean of its divisors is an integer number (15842742750).

Almost surely, 2^63136263431 is an apocalyptic number.

63136263431 is a deficient number, since it is larger than the sum of its proper divisors (234707569).

63136263431 is a wasteful number, since it uses less digits than its factorization.

63136263431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234707568.

The product of its digits is 139968, while the sum is 38.

The spelling of 63136263431 in words is "sixty-three billion, one hundred thirty-six million, two hundred sixty-three thousand, four hundred thirty-one".