4172557837969 has 2 divisors, whose sum is σ = 4172557837970. Its totient is φ = 4172557837968.

The previous prime is 4172557837907. The next prime is 4172557837991. The reversal of 4172557837969 is 9697387552714.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4060809371025 + 111748466944 = 2015145^2 + 334288^2 .

It is a cyclic number.

It is not a de Polignac number, because 4172557837969 - 2⁹ = 4172557837457 is a prime.

It is a super-2 number, since 2×4172557837969² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4172557837999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2086278918984 + 2086278918985.

It is an arithmetic number, because the mean of its divisors is an integer number (2086278918985).

Almost surely, 2^{4172557837969} is an apocalyptic number.

It is an amenable number.

4172557837969 is a deficient number, since it is larger than the sum of its proper divisors (1).

4172557837969 is an equidigital number, since it uses as much as digits as its factorization.

4172557837969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 800150400, while the sum is 73.

The spelling of 4172557837969 in words is "four trillion, one hundred seventy-two billion, five hundred fifty-seven million, eight hundred thirty-seven thousand, nine hundred sixty-nine".