70654732081 has 2 divisors, whose sum is σ = 70654732082. Its totient is φ = 70654732080.

The previous prime is 70654732007. The next prime is 70654732111. The reversal of 70654732081 is 18023745607.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70111096225 + 543635856 = 264785^2 + 23316^2 .

It is a cyclic number.

It is not a de Polignac number, because 70654732081 - 2²⁹ = 70117861169 is a prime.

It is a super-2 number, since 2×70654732081² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70654732381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35327366040 + 35327366041.

It is an arithmetic number, because the mean of its divisors is an integer number (35327366041).

Almost surely, 2^70654732081 is an apocalyptic number.

It is an amenable number.

70654732081 is a deficient number, since it is larger than the sum of its proper divisors (1).

70654732081 is an equidigital number, since it uses as much as digits as its factorization.

70654732081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 70654732081 in words is "seventy billion, six hundred fifty-four million, seven hundred thirty-two thousand, eighty-one".