42549478507 has 8 divisors (see below), whose sum is σ = 42741840240. Its totient is φ = 42357174240.

The previous prime is 42549478501. The next prime is 42549478523. The reversal of 42549478507 is 70587494524.

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

It is a cyclic number.

It is not a de Polignac number, because 42549478507 - 2¹⁵ = 42549445739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42549478501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2301633 + ... + 2320045.

It is an arithmetic number, because the mean of its divisors is an integer number (5342730030).

Almost surely, 2^42549478507 is an apocalyptic number.

42549478507 is a deficient number, since it is larger than the sum of its proper divisors (192361733).

42549478507 is a wasteful number, since it uses less digits than its factorization.

42549478507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28733.

The product of its (nonzero) digits is 11289600, while the sum is 55.

The spelling of 42549478507 in words is "forty-two billion, five hundred forty-nine million, four hundred seventy-eight thousand, five hundred seven".