63402202313 has 4 divisors (see below), whose sum is σ = 63507697428. Its totient is φ = 63296707200.

The previous prime is 63402202307. The next prime is 63402202327. The reversal of 63402202313 is 31320220436.

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

It can be written as a sum of positive squares in 2 ways, for example, as 56175162169 + 7227040144 = 237013^2 + 85012^2 .

It is a cyclic number.

It is not a de Polignac number, because 63402202313 - 2¹² = 63402198217 is a prime.

It is a super-5 number, since 5×63402202313⁵ (a number of 55 digits) contains 55555 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63402202393) 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, 52746656 + ... + 52747857.

It is an arithmetic number, because the mean of its divisors is an integer number (15876924357).

Almost surely, 2^63402202313 is an apocalyptic number.

It is an amenable number.

63402202313 is a deficient number, since it is larger than the sum of its proper divisors (105495115).

63402202313 is a wasteful number, since it uses less digits than its factorization.

63402202313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105495114.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 63402202313 its reverse (31320220436), we get a palindrome (94722422749).

The spelling of 63402202313 in words is "sixty-three billion, four hundred two million, two hundred two thousand, three hundred thirteen".