75561727157963 has 2 divisors, whose sum is σ = 75561727157964. Its totient is φ = 75561727157962.

The previous prime is 75561727157957. The next prime is 75561727157989. The reversal of 75561727157963 is 36975172716557.

It is a weak prime.

It is an emirp because it is prime and its reverse (36975172716557) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 75561727157963 - 2²⁴ = 75561710380747 is a prime.

It is a super-2 number, since 2×75561727157963² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75561727157953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37780863578981 + 37780863578982.

It is an arithmetic number, because the mean of its divisors is an integer number (37780863578982).

Almost surely, 2^{75561727157963} is an apocalyptic number.

75561727157963 is a deficient number, since it is larger than the sum of its proper divisors (1).

75561727157963 is an equidigital number, since it uses as much as digits as its factorization.

75561727157963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 583443000, while the sum is 71.

The spelling of 75561727157963 in words is "seventy-five trillion, five hundred sixty-one billion, seven hundred twenty-seven million, one hundred fifty-seven thousand, nine hundred sixty-three".