442807925545 has 8 divisors (see below), whose sum is σ = 534039710400. Its totient is φ = 352466207280.

The previous prime is 442807925503. The next prime is 442807925563. The reversal of 442807925545 is 545529708244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 442807925545 - 2²¹ = 442805828393 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222515551 + ... + 222517540.

It is an arithmetic number, because the mean of its divisors is an integer number (66754963800).

Almost surely, 2^442807925545 is an apocalyptic number.

It is an amenable number.

442807925545 is a deficient number, since it is larger than the sum of its proper divisors (91231784855).

442807925545 is a wasteful number, since it uses less digits than its factorization.

442807925545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445033295.

The product of its (nonzero) digits is 16128000, while the sum is 55.

The spelling of 442807925545 in words is "four hundred forty-two billion, eight hundred seven million, nine hundred twenty-five thousand, five hundred forty-five".