70771355251 has 2 divisors, whose sum is σ = 70771355252. Its totient is φ = 70771355250.

The previous prime is 70771355231. The next prime is 70771355257. The reversal of 70771355251 is 15255317707.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 70771355251 - 2²¹ = 70769258099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70771355198 and 70771355207.

It is not a weakly prime, because it can be changed into another prime (70771355257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35385677625 + 35385677626.

It is an arithmetic number, because the mean of its divisors is an integer number (35385677626).

Almost surely, 2^70771355251 is an apocalyptic number.

70771355251 is a deficient number, since it is larger than the sum of its proper divisors (1).

70771355251 is an equidigital number, since it uses as much as digits as its factorization.

70771355251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 257250, while the sum is 43.

The spelling of 70771355251 in words is "seventy billion, seven hundred seventy-one million, three hundred fifty-five thousand, two hundred fifty-one".