127465163394890 has 16 divisors (see below), whose sum is σ = 231467712644808. Its totient is φ = 50534861239296.

The previous prime is 127465163394889. The next prime is 127465163394893. The reversal of 127465163394890 is 98493361564721.

It can be written as a sum of positive squares in 4 ways, for example, as 24375479745409 + 103089683649481 = 4937153^2 + 10153309^2 .

It is a super-2 number, since 2×127465163394890² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 127465163394890.

It is not an unprimeable number, because it can be changed into a prime (127465163394893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56400513647 + ... + 56400515906.

It is a 1-persistent number, because it is pandigital, but 2⋅127465163394890 = 254930326789780 is not.

Almost surely, 2^{127465163394890} is an apocalyptic number.

127465163394890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

127465163394890 is a deficient number, since it is larger than the sum of its proper divisors (104002549249918).

127465163394890 is a wasteful number, since it uses less digits than its factorization.

127465163394890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112801029673.

The product of its (nonzero) digits is 235146240, while the sum is 68.

The spelling of 127465163394890 in words is "one hundred twenty-seven trillion, four hundred sixty-five billion, one hundred sixty-three million, three hundred ninety-four thousand, eight hundred ninety".