70774239881 has 2 divisors, whose sum is σ = 70774239882. Its totient is φ = 70774239880.

The previous prime is 70774239869. The next prime is 70774239889. The reversal of 70774239881 is 18893247707.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70692174400 + 82065481 = 265880^2 + 9059^2 .

It is a cyclic number.

It is not a de Polignac number, because 70774239881 - 2⁶ = 70774239817 is a prime.

It is a super-2 number, since 2×70774239881² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (70774239889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35387119940 + 35387119941.

It is an arithmetic number, because the mean of its divisors is an integer number (35387119941).

Almost surely, 2^70774239881 is an apocalyptic number.

It is an amenable number.

70774239881 is a deficient number, since it is larger than the sum of its proper divisors (1).

70774239881 is an equidigital number, since it uses as much as digits as its factorization.

70774239881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4741632, while the sum is 56.

The spelling of 70774239881 in words is "seventy billion, seven hundred seventy-four million, two hundred thirty-nine thousand, eight hundred eighty-one".