70951999961 has 2 divisors, whose sum is σ = 70951999962. Its totient is φ = 70951999960.

The previous prime is 70951999957. The next prime is 70952000017. The reversal of 70951999961 is 16999915907.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46932889600 + 24019110361 = 216640^2 + 154981^2 .

It is a cyclic number.

It is not a de Polignac number, because 70951999961 - 2² = 70951999957 is a prime.

It is not a weakly prime, because it can be changed into another prime (70951999361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35475999980 + 35475999981.

It is an arithmetic number, because the mean of its divisors is an integer number (35475999981).

Almost surely, 2^70951999961 is an apocalyptic number.

It is an amenable number.

70951999961 is a deficient number, since it is larger than the sum of its proper divisors (1).

70951999961 is an equidigital number, since it uses as much as digits as its factorization.

70951999961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12400290, while the sum is 65.

The spelling of 70951999961 in words is "seventy billion, nine hundred fifty-one million, nine hundred ninety-nine thousand, nine hundred sixty-one".