642646306150 has 96 divisors (see below), whose sum is σ = 1235193442560. Its totient is φ = 248599296000.

The previous prime is 642646306129. The next prime is 642646306213. The reversal of 642646306150 is 51603646246.

It is a super-3 number, since 3×642646306150³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 642646306097 and 642646306106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 278321196 + ... + 278323504.

It is an arithmetic number, because the mean of its divisors is an integer number (12866598360).

Almost surely, 2^642646306150 is an apocalyptic number.

642646306150 is a deficient number, since it is larger than the sum of its proper divisors (592547136410).

642646306150 is a wasteful number, since it uses less digits than its factorization.

642646306150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3490 (or 3485 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 642646306150 in words is "six hundred forty-two billion, six hundred forty-six million, three hundred six thousand, one hundred fifty".