127821741400 has 24 divisors (see below), whose sum is σ = 297185549220. Its totient is φ = 51128696480.

The previous prime is 127821741379. The next prime is 127821741461. The reversal of 127821741400 is 4147128721.

It is a self number, because there is not a number n which added to its sum of digits gives 127821741400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 319554154 + ... + 319554553.

Almost surely, 2^127821741400 is an apocalyptic number.

127821741400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127821741400 is an abundant number, since it is smaller than the sum of its proper divisors (169363807820).

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

127821741400 is a wasteful number, since it uses less digits than its factorization.

127821741400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639108723 (or 639108714 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 37.

It can be divided in two parts, 127821 and 741400, that added together give a triangular number (869221 = T₁₃₁₈).

The spelling of 127821741400 in words is "one hundred twenty-seven billion, eight hundred twenty-one million, seven hundred forty-one thousand, four hundred".