70037069981 has 2 divisors, whose sum is σ = 70037069982. Its totient is φ = 70037069980.

The previous prime is 70037069891. The next prime is 70037070011. The reversal of 70037069981 is 18996073007.

Together with previous prime (70037069891) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54941016025 + 15096053956 = 234395^2 + 122866^2 .

It is a cyclic number.

It is not a de Polignac number, because 70037069981 - 2¹⁰ = 70037068957 is a prime.

It is a super-2 number, since 2×70037069981² (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 (70037069281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35018534990 + 35018534991.

It is an arithmetic number, because the mean of its divisors is an integer number (35018534991).

Almost surely, 2^70037069981 is an apocalyptic number.

It is an amenable number.

70037069981 is a deficient number, since it is larger than the sum of its proper divisors (1).

70037069981 is an equidigital number, since it uses as much as digits as its factorization.

70037069981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 571536, while the sum is 50.

The spelling of 70037069981 in words is "seventy billion, thirty-seven million, sixty-nine thousand, nine hundred eighty-one".