639496127058 has 8 divisors (see below), whose sum is σ = 1278992254128. Its totient is φ = 213165375684.

The previous prime is 639496127057. The next prime is 639496127071. The reversal of 639496127058 is 850721694936.

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

639496127058 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 639496126992 and 639496127010.

It is not an unprimeable number, because it can be changed into a prime (639496127057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53291343916 + ... + 53291343927.

It is an arithmetic number, because the mean of its divisors is an integer number (159874031766).

It is a 1-persistent number, because it is pandigital, but 2⋅639496127058 = 1278992254116 is not.

Almost surely, 2^639496127058 is an apocalyptic number.

639496127058 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.

639496127058 is a wasteful number, since it uses less digits than its factorization.

639496127058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106582687848.

The product of its (nonzero) digits is 19595520, while the sum is 60.

The spelling of 639496127058 in words is "six hundred thirty-nine billion, four hundred ninety-six million, one hundred twenty-seven thousand, fifty-eight".