42400000012 has 24 divisors (see below), whose sum is σ = 79429089600. Its totient is φ = 19743798096.

The previous prime is 42400000001. The next prime is 42400000021. The reversal of 42400000012 is 21000000424.

42400000012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42399999938 and 42400000001.

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, 4723438 + ... + 4732405.

It is an arithmetic number, because the mean of its divisors is an integer number (3309545400).

Almost surely, 2^42400000012 is an apocalyptic number.

It is an amenable number.

42400000012 is a deficient number, since it is larger than the sum of its proper divisors (37029089588).

42400000012 is a wasteful number, since it uses less digits than its factorization.

42400000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9455925 (or 9455923 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 42400000012 its reverse (21000000424), we get a palindrome (63400000436).

The spelling of 42400000012 in words is "forty-two billion, four hundred million, twelve", and thus it is an aban number.