67432381961 has 8 divisors (see below), whose sum is σ = 77115537024. Its totient is φ = 57761716320.

The previous prime is 67432381931. The next prime is 67432381967. The reversal of 67432381961 is 16918323476.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67432381961 - 2¹⁸ = 67432119817 is a prime.

It is a super-2 number, since 2×67432381961² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67432381967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3110780 + ... + 3132381.

It is an arithmetic number, because the mean of its divisors is an integer number (9639442128).

Almost surely, 2^67432381961 is an apocalyptic number.

It is an amenable number.

67432381961 is a deficient number, since it is larger than the sum of its proper divisors (9683155063).

67432381961 is a wasteful number, since it uses less digits than its factorization.

67432381961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6244711.

The product of its digits is 1306368, while the sum is 50.

The spelling of 67432381961 in words is "sixty-seven billion, four hundred thirty-two million, three hundred eighty-one thousand, nine hundred sixty-one".