642264462246 has 16 divisors (see below), whose sum is σ = 1401304281408. Its totient is φ = 194625594600.

The previous prime is 642264462131. The next prime is 642264462277.

642264462246 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 642264462195 and 642264462204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4865639800 + ... + 4865639931.

It is an arithmetic number, because the mean of its divisors is an integer number (87581517588).

Almost surely, 2^642264462246 is an apocalyptic number.

642264462246 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

642264462246 is an abundant number, since it is smaller than the sum of its proper divisors (759039819162).

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

642264462246 is a wasteful number, since it uses less digits than its factorization.

642264462246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9731279747.

The product of its digits is 5308416, while the sum is 48.

It can be divided in two parts, 6 and 42264462246, that multiplied together give a square (253586773476 = 503574²).

The spelling of 642264462246 in words is "six hundred forty-two billion, two hundred sixty-four million, four hundred sixty-two thousand, two hundred forty-six".