128743761869400 has 96 divisors (see below), whose sum is σ = 399465542725200. Its totient is φ = 34300712332800.

The previous prime is 128743761869323. The next prime is 128743761869483. The reversal of 128743761869400 is 4968167347821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96076231 + ... + 97407030.

Almost surely, 2^{128743761869400} is an apocalyptic number.

128743761869400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128743761869400 is an abundant number, since it is smaller than the sum of its proper divisors (270721780855800).

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

128743761869400 is a wasteful number, since it uses less digits than its factorization.

128743761869400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193484389 (or 193484380 counting only the distinct ones).

The product of its (nonzero) digits is 97542144, while the sum is 66.

The spelling of 128743761869400 in words is "one hundred twenty-eight trillion, seven hundred forty-three billion, seven hundred sixty-one million, eight hundred sixty-nine thousand, four hundred".