127900387750 has 32 divisors (see below), whose sum is σ = 242460316800. Its totient is φ = 50512550400.

The previous prime is 127900387721. The next prime is 127900387751. The reversal of 127900387750 is 57783009721.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 127900387694 and 127900387703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127900387751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3218235 + ... + 3257734.

It is an arithmetic number, because the mean of its divisors is an integer number (7576884900).

Almost surely, 2^127900387750 is an apocalyptic number.

127900387750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127900387750 is a deficient number, since it is larger than the sum of its proper divisors (114559929050).

127900387750 is an equidigital number, since it uses as much as digits as its factorization.

127900387750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6476065 (or 6476055 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 49.

The spelling of 127900387750 in words is "one hundred twenty-seven billion, nine hundred million, three hundred eighty-seven thousand, seven hundred fifty".