42540797963 has 4 divisors (see below), whose sum is σ = 42541266768. Its totient is φ = 42540329160.

The previous prime is 42540797947. The next prime is 42540797983. The reversal of 42540797963 is 36979704524.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42540797963 - 2⁴ = 42540797947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42540797899 and 42540797908.

It is not an unprimeable number, because it can be changed into a prime (42540797983) 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, 49856 + ... + 295917.

It is an arithmetic number, because the mean of its divisors is an integer number (10635316692).

Almost surely, 2^42540797963 is an apocalyptic number.

42540797963 is a deficient number, since it is larger than the sum of its proper divisors (468805).

42540797963 is a wasteful number, since it uses less digits than its factorization.

42540797963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468804.

The product of its (nonzero) digits is 11430720, while the sum is 56.

The spelling of 42540797963 in words is "forty-two billion, five hundred forty million, seven hundred ninety-seven thousand, nine hundred sixty-three".