78276368747 has 2 divisors, whose sum is σ = 78276368748. Its totient is φ = 78276368746.

The previous prime is 78276368627. The next prime is 78276368773. The reversal of 78276368747 is 74786367287.

It is a strong prime.

It is an emirp because it is prime and its reverse (74786367287) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78276368747 - 2³⁶ = 9556892011 is a prime.

It is a super-2 number, since 2×78276368747² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78276365747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39138184373 + 39138184374.

It is an arithmetic number, because the mean of its divisors is an integer number (39138184374).

Almost surely, 2^78276368747 is an apocalyptic number.

78276368747 is a deficient number, since it is larger than the sum of its proper divisors (1).

78276368747 is an equidigital number, since it uses as much as digits as its factorization.

78276368747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 132765696, while the sum is 65.

The spelling of 78276368747 in words is "seventy-eight billion, two hundred seventy-six million, three hundred sixty-eight thousand, seven hundred forty-seven".