134619969457 has 2 divisors, whose sum is σ = 134619969458. Its totient is φ = 134619969456.

The previous prime is 134619969389. The next prime is 134619969467. The reversal of 134619969457 is 754969916431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124659131041 + 9960838416 = 353071^2 + 99804^2 .

It is a cyclic number.

It is not a de Polignac number, because 134619969457 - 2⁷ = 134619969329 is a prime.

It is a super-2 number, since 2×134619969457² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (134619969467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67309984728 + 67309984729.

It is an arithmetic number, because the mean of its divisors is an integer number (67309984729).

Almost surely, 2^134619969457 is an apocalyptic number.

It is an amenable number.

134619969457 is a deficient number, since it is larger than the sum of its proper divisors (1).

134619969457 is an equidigital number, since it uses as much as digits as its factorization.

134619969457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44089920, while the sum is 64.

The spelling of 134619969457 in words is "one hundred thirty-four billion, six hundred nineteen million, nine hundred sixty-nine thousand, four hundred fifty-seven".