70171722461 has 2 divisors, whose sum is σ = 70171722462. Its totient is φ = 70171722460.

The previous prime is 70171722457. The next prime is 70171722487. The reversal of 70171722461 is 16422717107.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68649240100 + 1522482361 = 262010^2 + 39019^2 .

It is a cyclic number.

It is not a de Polignac number, because 70171722461 - 2² = 70171722457 is a prime.

It is a super-2 number, since 2×70171722461² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70171722421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35085861230 + 35085861231.

It is an arithmetic number, because the mean of its divisors is an integer number (35085861231).

Almost surely, 2^70171722461 is an apocalyptic number.

It is an amenable number.

70171722461 is a deficient number, since it is larger than the sum of its proper divisors (1).

70171722461 is an equidigital number, since it uses as much as digits as its factorization.

70171722461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32928, while the sum is 38.

The spelling of 70171722461 in words is "seventy billion, one hundred seventy-one million, seven hundred twenty-two thousand, four hundred sixty-one".