127515785045413 has 2 divisors, whose sum is σ = 127515785045414. Its totient is φ = 127515785045412.

The previous prime is 127515785045357. The next prime is 127515785045633. The reversal of 127515785045413 is 314540587515721.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125099370757089 + 2416414288324 = 11184783^2 + 1554482^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127515785045413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127515785045713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63757892522706 + 63757892522707.

It is an arithmetic number, because the mean of its divisors is an integer number (63757892522707).

Almost surely, 2^{127515785045413} is an apocalyptic number.

It is an amenable number.

127515785045413 is a deficient number, since it is larger than the sum of its proper divisors (1).

127515785045413 is an equidigital number, since it uses as much as digits as its factorization.

127515785045413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520000, while the sum is 58.

The spelling of 127515785045413 in words is "one hundred twenty-seven trillion, five hundred fifteen billion, seven hundred eighty-five million, forty-five thousand, four hundred thirteen".