63323370431 has 4 divisors (see below), whose sum is σ = 67048274592. Its totient is φ = 59598466272.

The previous prime is 63323370427. The next prime is 63323370457. The reversal of 63323370431 is 13407332336.

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

It is a cyclic number.

It is not a de Polignac number, because 63323370431 - 2² = 63323370427 is a prime.

It is a super-2 number, since 2×63323370431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63323370391 and 63323370400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63323370631) 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, 1862452055 + ... + 1862452088.

It is an arithmetic number, because the mean of its divisors is an integer number (16762068648).

Almost surely, 2^63323370431 is an apocalyptic number.

63323370431 is a deficient number, since it is larger than the sum of its proper divisors (3724904161).

63323370431 is a wasteful number, since it uses less digits than its factorization.

63323370431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3724904160.

The product of its (nonzero) digits is 81648, while the sum is 35.

The spelling of 63323370431 in words is "sixty-three billion, three hundred twenty-three million, three hundred seventy thousand, four hundred thirty-one".