127377478442 has 8 divisors (see below), whose sum is σ = 191068090500. Its totient is φ = 63688114944.

The previous prime is 127377478441. The next prime is 127377478507. The reversal of 127377478442 is 244874773721.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 114696691561 + 12680786881 = 338669^2 + 112609^2 .

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

It is not an unprimeable number, because it can be changed into a prime (127377478441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8984 + ... + 504812.

Almost surely, 2^127377478442 is an apocalyptic number.

127377478442 is a deficient number, since it is larger than the sum of its proper divisors (63690612058).

127377478442 is a wasteful number, since it uses less digits than its factorization.

127377478442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624280.

The product of its digits is 14751744, while the sum is 56.

The spelling of 127377478442 in words is "one hundred twenty-seven billion, three hundred seventy-seven million, four hundred seventy-eight thousand, four hundred forty-two".