127994389140352 has 128 divisors (see below), whose sum is σ = 305747725178880. Its totient is φ = 52214980147200.

The previous prime is 127994389140347. The next prime is 127994389140427. The reversal of 127994389140352 is 253041983499721.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors.

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, 36076918 + ... + 39465589.

It is an arithmetic number, because the mean of its divisors is an integer number (2388654102960).

Almost surely, 2^{127994389140352} is an apocalyptic number.

It is an amenable number.

127994389140352 is an abundant number, since it is smaller than the sum of its proper divisors (177753336038528).

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

127994389140352 is an equidigital number, since it uses as much as digits as its factorization.

127994389140352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75542620 (or 75542608 counting only the distinct ones).

The product of its (nonzero) digits is 117573120, while the sum is 67.

The spelling of 127994389140352 in words is "one hundred twenty-seven trillion, nine hundred ninety-four billion, three hundred eighty-nine million, one hundred forty thousand, three hundred fifty-two".