642306603246 has 32 divisors (see below), whose sum is σ = 1601595687168. Its totient is φ = 166832883840.

The previous prime is 642306603209. The next prime is 642306603313.

642306603246 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 642306603198 and 642306603207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 695136555 + ... + 695137478.

It is an arithmetic number, because the mean of its divisors is an integer number (50049865224).

Almost surely, 2^642306603246 is an apocalyptic number.

642306603246 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

642306603246 is an abundant number, since it is smaller than the sum of its proper divisors (959289083922).

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

642306603246 is a wasteful number, since it uses less digits than its factorization.

642306603246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390274056.

The product of its (nonzero) digits is 746496, while the sum is 42.

The spelling of 642306603246 in words is "six hundred forty-two billion, three hundred six million, six hundred three thousand, two hundred forty-six".