42420604624 has 10 divisors (see below), whose sum is σ = 82189921490. Its totient is φ = 21210302304.

The previous prime is 42420604609. The next prime is 42420604649. The reversal of 42420604624 is 42640602424.

It can be written as a sum of positive squares in only one way, i.e., 28335662224 + 14084942400 = 168332^2 + 118680^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42420604624.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1325643879 + ... + 1325643910.

It is an arithmetic number, because the mean of its divisors is an integer number (8218992149).

Almost surely, 2^42420604624 is an apocalyptic number.

It is an amenable number.

42420604624 is a deficient number, since it is larger than the sum of its proper divisors (39769316866).

42420604624 is a wasteful number, since it uses less digits than its factorization.

42420604624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2651287797 (or 2651287791 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

The spelling of 42420604624 in words is "forty-two billion, four hundred twenty million, six hundred four thousand, six hundred twenty-four".