127520461975 has 6 divisors (see below), whose sum is σ = 158125372880. Its totient is φ = 102016369560.

The previous prime is 127520461963. The next prime is 127520461979. The reversal of 127520461975 is 579164025721.

It is a happy number.

It is not a de Polignac number, because 127520461975 - 2²⁵ = 127486907543 is a prime.

It is a super-2 number, since 2×127520461975² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127520461979) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2550409215 + ... + 2550409264.

Almost surely, 2^127520461975 is an apocalyptic number.

127520461975 is a deficient number, since it is larger than the sum of its proper divisors (30604910905).

127520461975 is an equidigital number, since it uses as much as digits as its factorization.

127520461975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5100818489 (or 5100818484 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 49.

The spelling of 127520461975 in words is "one hundred twenty-seven billion, five hundred twenty million, four hundred sixty-one thousand, nine hundred seventy-five".