42402624644 has 24 divisors (see below), whose sum is σ = 74870839680. Its totient is φ = 21011711616.

The previous prime is 42402624619. The next prime is 42402624647. The reversal of 42402624644 is 44642620424.

42402624644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42402624644² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42402624598 and 42402624607.

It is not an unprimeable number, because it can be changed into a prime (42402624647) 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, 130937 + ... + 319295.

It is an arithmetic number, because the mean of its divisors is an integer number (3119618320).

Almost surely, 2^42402624644 is an apocalyptic number.

It is an amenable number.

42402624644 is a deficient number, since it is larger than the sum of its proper divisors (32468215036).

42402624644 is a wasteful number, since it uses less digits than its factorization.

42402624644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188867 (or 188865 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 38.

The spelling of 42402624644 in words is "forty-two billion, four hundred two million, six hundred twenty-four thousand, six hundred forty-four".