70109881440 has 96 divisors (see below), whose sum is σ = 232469637120. Its totient is φ = 17711967744.

The previous prime is 70109881409. The next prime is 70109881481. The reversal of 70109881440 is 4418890107.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 70109881392 and 70109881401.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3834624 + ... + 3852863.

It is an arithmetic number, because the mean of its divisors is an integer number (2421558720).

Almost surely, 2^70109881440 is an apocalyptic number.

It is an amenable number.

70109881440 is an abundant number, since it is smaller than the sum of its proper divisors (162359755680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70109881440 is a wasteful number, since it uses less digits than its factorization.

70109881440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7687524 (or 7687516 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The spelling of 70109881440 in words is "seventy billion, one hundred nine million, eight hundred eighty-one thousand, four hundred forty".