42491699619425 has 24 divisors (see below), whose sum is σ = 60217176068352. Its totient is φ = 29136987648000.

The previous prime is 42491699619371. The next prime is 42491699619449. The reversal of 42491699619425 is 52491699619424.

42491699619425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42491699619425 - 2¹² = 42491699615329 is a prime.

It is a super-4 number, since 4×42491699619425⁴ (a number of 56 digits) contains 4444 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32188385 + ... + 33482465.

It is an arithmetic number, because the mean of its divisors is an integer number (2509049002848).

Almost surely, 2^{42491699619425} is an apocalyptic number.

It is an amenable number.

42491699619425 is a deficient number, since it is larger than the sum of its proper divisors (17725476448927).

42491699619425 is a wasteful number, since it uses less digits than its factorization.

42491699619425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481729 (or 1481724 counting only the distinct ones).

The product of its digits is 302330880, while the sum is 71.

Subtracting 42491699619425 from its reverse (52491699619424), we obtain a palindrome (9999999999999).

The spelling of 42491699619425 in words is "forty-two trillion, four hundred ninety-one billion, six hundred ninety-nine million, six hundred nineteen thousand, four hundred twenty-five".