42717620825 has 24 divisors (see below), whose sum is σ = 61184432160. Its totient is φ = 29239865600.

The previous prime is 42717620819. The next prime is 42717620833. The reversal of 42717620825 is 52802671724.

42717620825 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 42717620825 - 2⁴ = 42717620809 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4564055 + ... + 4573404.

It is an arithmetic number, because the mean of its divisors is an integer number (2549351340).

Almost surely, 2^42717620825 is an apocalyptic number.

It is an amenable number.

42717620825 is a deficient number, since it is larger than the sum of its proper divisors (18466811335).

42717620825 is a wasteful number, since it uses less digits than its factorization.

42717620825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9137497 (or 9137492 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 42717620825 in words is "forty-two billion, seven hundred seventeen million, six hundred twenty thousand, eight hundred twenty-five".