78507875363 has 2 divisors, whose sum is σ = 78507875364. Its totient is φ = 78507875362.

The previous prime is 78507875339. The next prime is 78507875371. The reversal of 78507875363 is 36357870587.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78507875363 - 2⁸ = 78507875107 is a prime.

It is not a weakly prime, because it can be changed into another prime (78507875063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39253937681 + 39253937682.

It is an arithmetic number, because the mean of its divisors is an integer number (39253937682).

Almost surely, 2^78507875363 is an apocalyptic number.

78507875363 is a deficient number, since it is larger than the sum of its proper divisors (1).

78507875363 is an equidigital number, since it uses as much as digits as its factorization.

78507875363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29635200, while the sum is 59.

The spelling of 78507875363 in words is "seventy-eight billion, five hundred seven million, eight hundred seventy-five thousand, three hundred sixty-three".