127919248638 has 8 divisors (see below), whose sum is σ = 255838497288. Its totient is φ = 42639749544.

The previous prime is 127919248607. The next prime is 127919248673. The reversal of 127919248638 is 836842919721.

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

127919248638 is an admirable number.

It is a super-2 number, since 2×127919248638² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 10659937381 + ... + 10659937392.

It is an arithmetic number, because the mean of its divisors is an integer number (31979812161).

Almost surely, 2^127919248638 is an apocalyptic number.

127919248638 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.

127919248638 is a wasteful number, since it uses less digits than its factorization.

127919248638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21319874778.

The product of its digits is 10450944, while the sum is 60.

The spelling of 127919248638 in words is "one hundred twenty-seven billion, nine hundred nineteen million, two hundred forty-eight thousand, six hundred thirty-eight".