42722919436 has 24 divisors (see below), whose sum is σ = 79767371376. Its totient is φ = 19951426560.

The previous prime is 42722919373. The next prime is 42722919457. The reversal of 42722919436 is 63491922724.

It is a happy number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 42722919436.

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, 2389101 + ... + 2406916.

It is an arithmetic number, because the mean of its divisors is an integer number (3323640474).

Almost surely, 2^42722919436 is an apocalyptic number.

It is an amenable number.

42722919436 is a deficient number, since it is larger than the sum of its proper divisors (37044451940).

42722919436 is a wasteful number, since it uses less digits than its factorization.

42722919436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4796169 (or 4796167 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 49.

The spelling of 42722919436 in words is "forty-two billion, seven hundred twenty-two million, nine hundred nineteen thousand, four hundred thirty-six".