42099100625 has 40 divisors (see below), whose sum is σ = 54492556800. Its totient is φ = 32475240000.

The previous prime is 42099100619. The next prime is 42099100627. The reversal of 42099100625 is 52600199024.

It is not a de Polignac number, because 42099100625 - 2¹⁶ = 42099035089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42099100627) 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 39 ways as a sum of consecutive naturals, for example, 26661086 + ... + 26662664.

It is an arithmetic number, because the mean of its divisors is an integer number (1362313920).

Almost surely, 2^42099100625 is an apocalyptic number.

It is an amenable number.

42099100625 is a deficient number, since it is larger than the sum of its proper divisors (12393456175).

42099100625 is a wasteful number, since it uses less digits than its factorization.

42099100625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3099 (or 3084 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

Adding to 42099100625 its reverse (52600199024), we get a palindrome (94699299649).

The spelling of 42099100625 in words is "forty-two billion, ninety-nine million, one hundred thousand, six hundred twenty-five".