70311013440 has 112 divisors (see below), whose sum is σ = 223299601152. Its totient is φ = 18744385536.

The previous prime is 70311013427. The next prime is 70311013463. The reversal of 70311013440 is 4431011307.

It is a super-2 number, since 2×70311013440² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 70311013440.

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, 4462857 + ... + 4478583.

Almost surely, 2^70311013440 is an apocalyptic number.

It is an amenable number.

70311013440 is an abundant number, since it is smaller than the sum of its proper divisors (152988587712).

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

70311013440 is a wasteful number, since it uses less digits than its factorization.

70311013440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20404 (or 20394 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

Adding to 70311013440 its reverse (4431011307), we get a palindrome (74742024747).

The spelling of 70311013440 in words is "seventy billion, three hundred eleven million, thirteen thousand, four hundred forty".