42045215042 has 16 divisors (see below), whose sum is σ = 63387576000. Its totient is φ = 20916089040.

The previous prime is 42045214973. The next prime is 42045215053. The reversal of 42045215042 is 24051254024.

It is a junction number, because it is equal to n+sod(n) for n = 42045214996 and 42045215014.

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, 1415459 + ... + 1444857.

It is an arithmetic number, because the mean of its divisors is an integer number (3961723500).

Almost surely, 2^42045215042 is an apocalyptic number.

42045215042 is a deficient number, since it is larger than the sum of its proper divisors (21342360958).

42045215042 is a wasteful number, since it uses less digits than its factorization.

42045215042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33001.

The product of its (nonzero) digits is 12800, while the sum is 29.

Adding to 42045215042 its reverse (24051254024), we get a palindrome (66096469066).

The spelling of 42045215042 in words is "forty-two billion, forty-five million, two hundred fifteen thousand, forty-two".