127994389140351 has 8 divisors (see below), whose sum is σ = 170659416376960. Its totient is φ = 85329477331992.

The previous prime is 127994389140347. The next prime is 127994389140427. The reversal of 127994389140351 is 153041983499721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 127994389140351 - 2² = 127994389140347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127994389140251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26235691 + ... + 30729468.

It is an arithmetic number, because the mean of its divisors is an integer number (21332427047120).

Almost surely, 2^{127994389140351} is an apocalyptic number.

127994389140351 is a deficient number, since it is larger than the sum of its proper divisors (42665027236609).

127994389140351 is an equidigital number, since it uses as much as digits as its factorization.

127994389140351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57714125.

The product of its (nonzero) digits is 58786560, while the sum is 66.

The spelling of 127994389140351 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-one".