315706178551 has 2 divisors, whose sum is σ = 315706178552. Its totient is φ = 315706178550.

The previous prime is 315706178549. The next prime is 315706178581. The reversal of 315706178551 is 155871607513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315706178551 - 2¹ = 315706178549 is a prime.

Together with 315706178549, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 315706178495 and 315706178504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315706178581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157853089275 + 157853089276.

It is an arithmetic number, because the mean of its divisors is an integer number (157853089276).

Almost surely, 2^315706178551 is an apocalyptic number.

315706178551 is a deficient number, since it is larger than the sum of its proper divisors (1).

315706178551 is an equidigital number, since it uses as much as digits as its factorization.

315706178551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882000, while the sum is 49.

The spelling of 315706178551 in words is "three hundred fifteen billion, seven hundred six million, one hundred seventy-eight thousand, five hundred fifty-one".