42499456841 has 4 divisors (see below), whose sum is σ = 42499894800. Its totient is φ = 42499018884.

The previous prime is 42499456837. The next prime is 42499456871. The reversal of 42499456841 is 14865499424.

It is a happy number.

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, 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 42499456841 - 2² = 42499456837 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42499456871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1271 + ... + 291548.

It is an arithmetic number, because the mean of its divisors is an integer number (10624973700).

Almost surely, 2^42499456841 is an apocalyptic number.

It is an amenable number.

42499456841 is a deficient number, since it is larger than the sum of its proper divisors (437959).

42499456841 is a wasteful number, since it uses less digits than its factorization.

42499456841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437958.

The product of its digits is 9953280, while the sum is 56.

The spelling of 42499456841 in words is "forty-two billion, four hundred ninety-nine million, four hundred fifty-six thousand, eight hundred forty-one".