42167237636 has 6 divisors (see below), whose sum is σ = 73792665870. Its totient is φ = 21083618816.

The previous prime is 42167237591. The next prime is 42167237641. The reversal of 42167237636 is 63673276124.

It can be written as a sum of positive squares in only one way, i.e., 41105129536 + 1062108100 = 202744^2 + 32590^2 .

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, 5270904701 + ... + 5270904708.

It is an arithmetic number, because the mean of its divisors is an integer number (12298777645).

Almost surely, 2^42167237636 is an apocalyptic number.

It is an amenable number.

42167237636 is a deficient number, since it is larger than the sum of its proper divisors (31625428234).

42167237636 is a wasteful number, since it uses less digits than its factorization.

42167237636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10541809413 (or 10541809411 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 47.

The spelling of 42167237636 in words is "forty-two billion, one hundred sixty-seven million, two hundred thirty-seven thousand, six hundred thirty-six".