42356307988 has 6 divisors (see below), whose sum is σ = 74123538986. Its totient is φ = 21178153992.

The previous prime is 42356307979. The next prime is 42356307991. The reversal of 42356307988 is 88970365324.

It can be written as a sum of positive squares in only one way, i.e., 42272182404 + 84125584 = 205602^2 + 9172^2 .

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, 5294538495 + ... + 5294538502.

Almost surely, 2^42356307988 is an apocalyptic number.

It is an amenable number.

42356307988 is a deficient number, since it is larger than the sum of its proper divisors (31767230998).

42356307988 is a wasteful number, since it uses less digits than its factorization.

42356307988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10589077001 (or 10589076999 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 55.

The spelling of 42356307988 in words is "forty-two billion, three hundred fifty-six million, three hundred seven thousand, nine hundred eighty-eight".