42561467907 has 16 divisors (see below), whose sum is σ = 64858758912. Its totient is φ = 24319643040.

The previous prime is 42561467899. The next prime is 42561467933. The reversal of 42561467907 is 70976416524.

It is a happy number.

42561467907 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 42561467907 - 2³ = 42561467899 is a prime.

It is a super-2 number, since 2×42561467907² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42561467907.

It is not an unprimeable number, because it can be changed into a prime (42561467957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 562432 + ... + 633602.

It is an arithmetic number, because the mean of its divisors is an integer number (4053672432).

Almost surely, 2^42561467907 is an apocalyptic number.

42561467907 is a deficient number, since it is larger than the sum of its proper divisors (22297291005).

42561467907 is a wasteful number, since it uses less digits than its factorization.

42561467907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99658.

The product of its (nonzero) digits is 2540160, while the sum is 51.

It can be divided in two parts, 425614 and 67907, that added together give a triangular number (493521 = T₉₉₃).

The spelling of 42561467907 in words is "forty-two billion, five hundred sixty-one million, four hundred sixty-seven thousand, nine hundred seven".