127072045615461 has 4 divisors (see below), whose sum is σ = 169429394153952. Its totient is φ = 84714697076972.

The previous prime is 127072045615393. The next prime is 127072045615469. The reversal of 127072045615461 is 164516540270721.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 127072045615461 - 2¹⁴ = 127072045599077 is a prime.

It is a super-2 number, since 2×127072045615461² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127072045615469) 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, 21178674269241 + ... + 21178674269246.

It is an arithmetic number, because the mean of its divisors is an integer number (42357348538488).

Almost surely, 2^{127072045615461} is an apocalyptic number.

It is an amenable number.

127072045615461 is a deficient number, since it is larger than the sum of its proper divisors (42357348538491).

127072045615461 is an equidigital number, since it uses as much as digits as its factorization.

127072045615461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42357348538490.

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 127072045615461 in words is "one hundred twenty-seven trillion, seventy-two billion, forty-five million, six hundred fifteen thousand, four hundred sixty-one".