638105326962 has 8 divisors (see below), whose sum is σ = 1276210653936. Its totient is φ = 212701775652.

The previous prime is 638105326951. The next prime is 638105327021. The reversal of 638105326962 is 269623501836.

It is a sphenic number, since it is the product of 3 distinct primes.

638105326962 is an admirable number.

It is a super-3 number, since 3×638105326962³ (a number of 36 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53175443908 + ... + 53175443919.

It is an arithmetic number, because the mean of its divisors is an integer number (159526331742).

Almost surely, 2^638105326962 is an apocalyptic number.

638105326962 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

638105326962 is a wasteful number, since it uses less digits than its factorization.

638105326962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106350887832.

The product of its (nonzero) digits is 2799360, while the sum is 51.

The spelling of 638105326962 in words is "six hundred thirty-eight billion, one hundred five million, three hundred twenty-six thousand, nine hundred sixty-two".