78961104767 has 2 divisors, whose sum is σ = 78961104768. Its totient is φ = 78961104766.

The previous prime is 78961104757. The next prime is 78961104769. The reversal of 78961104767 is 76740116987.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78961104767 - 2⁴ = 78961104751 is a prime.

It is a super-3 number, since 3×78961104767³ (a number of 34 digits) contains 333 as substring.

Together with 78961104769, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78961104769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39480552383 + 39480552384.

It is an arithmetic number, because the mean of its divisors is an integer number (39480552384).

Almost surely, 2^78961104767 is an apocalyptic number.

78961104767 is a deficient number, since it is larger than the sum of its proper divisors (1).

78961104767 is an equidigital number, since it uses as much as digits as its factorization.

78961104767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3556224, while the sum is 56.

The spelling of 78961104767 in words is "seventy-eight billion, nine hundred sixty-one million, one hundred four thousand, seven hundred sixty-seven".