642440463150 has 96 divisors (see below), whose sum is σ = 1678666129920. Its totient is φ = 162277822080.

The previous prime is 642440463139. The next prime is 642440463167. The reversal of 642440463150 is 51364044246.

642440463150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 642440463099 and 642440463108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 548605 + ... + 1259304.

It is an arithmetic number, because the mean of its divisors is an integer number (17486105520).

Almost surely, 2^642440463150 is an apocalyptic number.

642440463150 is an abundant number, since it is smaller than the sum of its proper divisors (1036225666770).

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

642440463150 is a wasteful number, since it uses less digits than its factorization.

642440463150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808050 (or 1808045 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 39.

The spelling of 642440463150 in words is "six hundred forty-two billion, four hundred forty million, four hundred sixty-three thousand, one hundred fifty".