70993243881 has 48 divisors (see below), whose sum is σ = 121573565568. Its totient is φ = 40554950400.

The previous prime is 70993243843. The next prime is 70993243891. The reversal of 70993243881 is 18834239907.

It is not a de Polignac number, because 70993243881 - 2⁷ = 70993243753 is a prime.

It is a super-2 number, since 2×70993243881² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70993243801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9966001 + ... + 9973121.

It is an arithmetic number, because the mean of its divisors is an integer number (2532782616).

Almost surely, 2^70993243881 is an apocalyptic number.

It is an amenable number.

70993243881 is a deficient number, since it is larger than the sum of its proper divisors (50580321687).

70993243881 is an equidigital number, since it uses as much as digits as its factorization.

70993243881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13004 (or 12992 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 70993243881 in words is "seventy billion, nine hundred ninety-three million, two hundred forty-three thousand, eight hundred eighty-one".