42736087297 has 4 divisors (see below), whose sum is σ = 42894957780. Its totient is φ = 42577216816.

The previous prime is 42736087223. The next prime is 42736087309. The reversal of 42736087297 is 79278063724.

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 777071376 + 41959015921 = 27876^2 + 204839^2 .

It is a cyclic number.

It is not a de Polignac number, because 42736087297 - 2⁷ = 42736087169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42736087697) 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, 79434838 + ... + 79435375.

It is an arithmetic number, because the mean of its divisors is an integer number (10723739445).

Almost surely, 2^42736087297 is an apocalyptic number.

It is an amenable number.

42736087297 is a deficient number, since it is larger than the sum of its proper divisors (158870483).

42736087297 is a wasteful number, since it uses less digits than its factorization.

42736087297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158870482.

The product of its (nonzero) digits is 7112448, while the sum is 55.

The spelling of 42736087297 in words is "forty-two billion, seven hundred thirty-six million, eighty-seven thousand, two hundred ninety-seven".