67940077261663 has 8 divisors (see below), whose sum is σ = 75064228586208. Its totient is φ = 61163445513984.

The previous prime is 67940077261603. The next prime is 67940077261757. The reversal of 67940077261663 is 36616277004976.

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

It is a cyclic number.

It is not a de Polignac number, because 67940077261663 - 2⁴⁵ = 32755705172831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67940077261595 and 67940077261604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67940077261603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86879893806 + ... + 86879894587.

It is an arithmetic number, because the mean of its divisors is an integer number (9383028573276).

Almost surely, 2^{67940077261663} is an apocalyptic number.

67940077261663 is a deficient number, since it is larger than the sum of its proper divisors (7124151324545).

67940077261663 is a wasteful number, since it uses less digits than its factorization.

67940077261663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173759788433.

The product of its (nonzero) digits is 96018048, while the sum is 64.

The spelling of 67940077261663 in words is "sixty-seven trillion, nine hundred forty billion, seventy-seven million, two hundred sixty-one thousand, six hundred sixty-three".