42820996597 has 4 divisors (see below), whose sum is σ = 45074733280. Its totient is φ = 40567259916.

The previous prime is 42820996583. The next prime is 42820996607. The reversal of 42820996597 is 79569902824.

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-42820996597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42820996507) 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, 1126868313 + ... + 1126868350.

It is an arithmetic number, because the mean of its divisors is an integer number (11268683320).

Almost surely, 2^42820996597 is an apocalyptic number.

It is an amenable number.

42820996597 is a deficient number, since it is larger than the sum of its proper divisors (2253736683).

42820996597 is a wasteful number, since it uses less digits than its factorization.

42820996597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253736682.

The product of its (nonzero) digits is 19595520, while the sum is 61.

The spelling of 42820996597 in words is "forty-two billion, eight hundred twenty million, nine hundred ninety-six thousand, five hundred ninety-seven".