67776904519679 has 4 divisors (see below), whose sum is σ = 69353111601576. Its totient is φ = 66200697437784.

The previous prime is 67776904519591. The next prime is 67776904519717. The reversal of 67776904519679 is 97691540967776.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 67776904519679 - 2¹⁶ = 67776904454143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67776904519597 and 67776904519606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67776904513679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 788103540884 + ... + 788103540969.

It is an arithmetic number, because the mean of its divisors is an integer number (17338277900394).

Almost surely, 2^{67776904519679} is an apocalyptic number.

67776904519679 is a deficient number, since it is larger than the sum of its proper divisors (1576207081897).

67776904519679 is a wasteful number, since it uses less digits than its factorization.

67776904519679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576207081896.

The product of its (nonzero) digits is 7561421280, while the sum is 83.

The spelling of 67776904519679 in words is "sixty-seven trillion, seven hundred seventy-six billion, nine hundred four million, five hundred nineteen thousand, six hundred seventy-nine".