70067073761 has 2 divisors, whose sum is σ = 70067073762. Its totient is φ = 70067073760.

The previous prime is 70067073667. The next prime is 70067073767. The reversal of 70067073761 is 16737076007.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61372630225 + 8694443536 = 247735^2 + 93244^2 .

It is an emirp because it is prime and its reverse (16737076007) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70067073761 - 2³⁰ = 68993331937 is a prime.

It is not a weakly prime, because it can be changed into another prime (70067073767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35033536880 + 35033536881.

It is an arithmetic number, because the mean of its divisors is an integer number (35033536881).

Almost surely, 2^70067073761 is an apocalyptic number.

It is an amenable number.

70067073761 is a deficient number, since it is larger than the sum of its proper divisors (1).

70067073761 is an equidigital number, since it uses as much as digits as its factorization.

70067073761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259308, while the sum is 44.

The spelling of 70067073761 in words is "seventy billion, sixty-seven million, seventy-three thousand, seven hundred sixty-one".