127797902954 has 4 divisors (see below), whose sum is σ = 191696854434. Its totient is φ = 63898951476.

The previous prime is 127797902887. The next prime is 127797902977. The reversal of 127797902954 is 459209797721.

It is a happy number.

127797902954 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 459209797721 = 508301 ⋅903421.

It can be written as a sum of positive squares in only one way, i.e., 90284023729 + 37513879225 = 300473^2 + 193685^2 .

It is a super-2 number, since 2×127797902954² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31949475737 + ... + 31949475740.

Almost surely, 2^127797902954 is an apocalyptic number.

127797902954 is a deficient number, since it is larger than the sum of its proper divisors (63898951480).

127797902954 is an equidigital number, since it uses as much as digits as its factorization.

127797902954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63898951479.

The product of its (nonzero) digits is 20003760, while the sum is 62.

The spelling of 127797902954 in words is "one hundred twenty-seven billion, seven hundred ninety-seven million, nine hundred two thousand, nine hundred fifty-four".