42097309369 has 4 divisors (see below), whose sum is σ = 42104022244. Its totient is φ = 42090596496.

The previous prime is 42097309349. The next prime is 42097309451. The reversal of 42097309369 is 96390379024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32117299369 + 9980010000 = 179213^2 + 99900^2 .

It is a cyclic number.

It is not a de Polignac number, because 42097309369 - 2²³ = 42088920761 is a prime.

It is a super-2 number, since 2×42097309369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42097309349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3347022 + ... + 3359575.

It is an arithmetic number, because the mean of its divisors is an integer number (10526005561).

Almost surely, 2^42097309369 is an apocalyptic number.

It is an amenable number.

42097309369 is a deficient number, since it is larger than the sum of its proper divisors (6712875).

42097309369 is an equidigital number, since it uses as much as digits as its factorization.

42097309369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6712874.

The product of its (nonzero) digits is 2204496, while the sum is 52.

The spelling of 42097309369 in words is "forty-two billion, ninety-seven million, three hundred nine thousand, three hundred sixty-nine".