445421242552 has 32 divisors (see below), whose sum is σ = 981172669680. Its totient is φ = 186890031360.

The previous prime is 445421242507. The next prime is 445421242579. The reversal of 445421242552 is 255242124544.

It is a congruent number.

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, 194675973 + ... + 194678260.

Almost surely, 2^445421242552 is an apocalyptic number.

It is an amenable number.

445421242552 is an abundant number, since it is smaller than the sum of its proper divisors (535751427128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445421242552 is a wasteful number, since it uses less digits than its factorization.

445421242552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389354263 (or 389354259 counting only the distinct ones).

The product of its digits is 512000, while the sum is 40.

The spelling of 445421242552 in words is "four hundred forty-five billion, four hundred twenty-one million, two hundred forty-two thousand, five hundred fifty-two".