127838401554040 has 64 divisors (see below), whose sum is σ = 287926679224800. Its totient is φ = 51083775172608.

The previous prime is 127838401554007. The next prime is 127838401554121. The reversal of 127838401554040 is 40455104838721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215568012 + ... + 216160228.

Almost surely, 2^{127838401554040} is an apocalyptic number.

127838401554040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127838401554040 is an abundant number, since it is smaller than the sum of its proper divisors (160088277670760).

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

127838401554040 is a wasteful number, since it uses less digits than its factorization.

127838401554040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597664 (or 597660 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 52.

The spelling of 127838401554040 in words is "one hundred twenty-seven trillion, eight hundred thirty-eight billion, four hundred one million, five hundred fifty-four thousand, forty".