70881991355 has 8 divisors (see below), whose sum is σ = 97209588192. Its totient is φ = 48604794048.

The previous prime is 70881991343. The next prime is 70881991361. The reversal of 70881991355 is 55319918807.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70881991355 - 2⁸ = 70881991099 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70881991355.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1012599842 + ... + 1012599911.

It is an arithmetic number, because the mean of its divisors is an integer number (12151198524).

Almost surely, 2^70881991355 is an apocalyptic number.

70881991355 is a deficient number, since it is larger than the sum of its proper divisors (26327596837).

70881991355 is a wasteful number, since it uses less digits than its factorization.

70881991355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025199765.

The product of its (nonzero) digits is 2721600, while the sum is 56.

The spelling of 70881991355 in words is "seventy billion, eight hundred eighty-one million, nine hundred ninety-one thousand, three hundred fifty-five".