42387949626 has 32 divisors (see below), whose sum is σ = 92962012608. Its totient is φ = 12778275840.

The previous prime is 42387949621. The next prime is 42387949663. The reversal of 42387949626 is 62694978324.

It is a self number, because there is not a number n which added to its sum of digits gives 42387949626.

It is not an unprimeable number, because it can be changed into a prime (42387949621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1651101 + ... + 1676576.

It is an arithmetic number, because the mean of its divisors is an integer number (2905062894).

Almost surely, 2^42387949626 is an apocalyptic number.

42387949626 is an abundant number, since it is smaller than the sum of its proper divisors (50574062982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42387949626 is a wasteful number, since it uses less digits than its factorization.

42387949626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3327886.

The product of its digits is 31352832, while the sum is 60.

The spelling of 42387949626 in words is "forty-two billion, three hundred eighty-seven million, nine hundred forty-nine thousand, six hundred twenty-six".