67638237963 has 16 divisors (see below), whose sum is σ = 90771072000. Its totient is φ = 44799060096.

The previous prime is 67638237917. The next prime is 67638237973. The reversal of 67638237963 is 36973283676.

It is not a de Polignac number, because 67638237963 - 2¹² = 67638233867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67638237897 and 67638237906.

It is not an unprimeable number, because it can be changed into a prime (67638237973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 967731 + ... + 1035267.

It is an arithmetic number, because the mean of its divisors is an integer number (5673192000).

Almost surely, 2^67638237963 is an apocalyptic number.

67638237963 is a deficient number, since it is larger than the sum of its proper divisors (23132834037).

67638237963 is a wasteful number, since it uses less digits than its factorization.

67638237963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69706.

The product of its digits is 41150592, while the sum is 60.

The spelling of 67638237963 in words is "sixty-seven billion, six hundred thirty-eight million, two hundred thirty-seven thousand, nine hundred sixty-three".