639419288130 has 192 divisors, whose sum is σ = 1966464864000. Its totient is φ = 141044359680.

The previous prime is 639419288111. The next prime is 639419288143. The reversal of 639419288130 is 31882914936.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 43493521 + ... + 43508219.

It is an arithmetic number, because the mean of its divisors is an integer number (10242004500).

Almost surely, 2^639419288130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 639419288130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (983232432000).

639419288130 is an abundant number, since it is smaller than the sum of its proper divisors (1327045575870).

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

639419288130 is a wasteful number, since it uses less digits than its factorization.

639419288130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17129 (or 17126 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 639419288130 in words is "six hundred thirty-nine billion, four hundred nineteen million, two hundred eighty-eight thousand, one hundred thirty".