642363363246 has 48 divisors (see below), whose sum is σ = 1412251473024. Its totient is φ = 194639874000.

The previous prime is 642363363241. The next prime is 642363363251.

642363363246 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (642363363241) and next prime (642363363251).

It is a junction number, because it is equal to n+sod(n) for n = 642363363195 and 642363363204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642363363241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11581801 + ... + 11637131.

It is an arithmetic number, because the mean of its divisors is an integer number (29421905688).

Almost surely, 2^642363363246 is an apocalyptic number.

642363363246 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

642363363246 is an abundant number, since it is smaller than the sum of its proper divisors (769888109778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

642363363246 is a wasteful number, since it uses less digits than its factorization.

642363363246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71349 (or 71338 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 48.

The spelling of 642363363246 in words is "six hundred forty-two billion, three hundred sixty-three million, three hundred sixty-three thousand, two hundred forty-six".