78451752959 has 2 divisors, whose sum is σ = 78451752960. Its totient is φ = 78451752958.

The previous prime is 78451752941. The next prime is 78451753001. The reversal of 78451752959 is 95925715487.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78451752959 - 2¹² = 78451748863 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78451752859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39225876479 + 39225876480.

It is an arithmetic number, because the mean of its divisors is an integer number (39225876480).

Almost surely, 2^78451752959 is an apocalyptic number.

78451752959 is a deficient number, since it is larger than the sum of its proper divisors (1).

78451752959 is an equidigital number, since it uses as much as digits as its factorization.

78451752959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752000, while the sum is 62.

The spelling of 78451752959 in words is "seventy-eight billion, four hundred fifty-one million, seven hundred fifty-two thousand, nine hundred fifty-nine".