42693920369 has 4 divisors (see below), whose sum is σ = 42695594496. Its totient is φ = 42692246244.

The previous prime is 42693920363. The next prime is 42693920459. The reversal of 42693920369 is 96302939624.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42693920369 is a prime.

It is a super-2 number, since 2×42693920369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42693920369.

It is not an unprimeable number, because it can be changed into a prime (42693920363) 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, 798209 + ... + 850014.

It is an arithmetic number, because the mean of its divisors is an integer number (10673898624).

Almost surely, 2^42693920369 is an apocalyptic number.

It is an amenable number.

42693920369 is a deficient number, since it is larger than the sum of its proper divisors (1674127).

42693920369 is a wasteful number, since it uses less digits than its factorization.

42693920369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674126.

The product of its (nonzero) digits is 3779136, while the sum is 53.

The spelling of 42693920369 in words is "forty-two billion, six hundred ninety-three million, nine hundred twenty thousand, three hundred sixty-nine".