78152278644367 has 2 divisors, whose sum is σ = 78152278644368. Its totient is φ = 78152278644366.

The previous prime is 78152278644313. The next prime is 78152278644371. The reversal of 78152278644367 is 76344687225187.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78152278644367 - 2³⁹ = 77602522830479 is a prime.

It is a super-2 number, since 2×78152278644367² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78152278644296 and 78152278644305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78152278644067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39076139322183 + 39076139322184.

It is an arithmetic number, because the mean of its divisors is an integer number (39076139322184).

Almost surely, 2^{78152278644367} is an apocalyptic number.

78152278644367 is a deficient number, since it is larger than the sum of its proper divisors (1).

78152278644367 is an equidigital number, since it uses as much as digits as its factorization.

78152278644367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 758661120, while the sum is 70.

The spelling of 78152278644367 in words is "seventy-eight trillion, one hundred fifty-two billion, two hundred seventy-eight million, six hundred forty-four thousand, three hundred sixty-seven".