78526507051 has 2 divisors, whose sum is σ = 78526507052. Its totient is φ = 78526507050.

The previous prime is 78526507021. The next prime is 78526507091. The reversal of 78526507051 is 15070562587.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78526507051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78526506992 and 78526507010.

It is not a weakly prime, because it can be changed into another prime (78526507001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39263253525 + 39263253526.

It is an arithmetic number, because the mean of its divisors is an integer number (39263253526).

Almost surely, 2^78526507051 is an apocalyptic number.

78526507051 is a deficient number, since it is larger than the sum of its proper divisors (1).

78526507051 is an equidigital number, since it uses as much as digits as its factorization.

78526507051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 588000, while the sum is 46.

The spelling of 78526507051 in words is "seventy-eight billion, five hundred twenty-six million, five hundred seven thousand, fifty-one".