70147720040 has 16 divisors (see below), whose sum is σ = 157832370180. Its totient is φ = 28059088000.

The previous prime is 70147720031. The next prime is 70147720063. The reversal of 70147720040 is 4002774107.

It can be written as a sum of positive squares in 2 ways, for example, as 67707162436 + 2440557604 = 260206^2 + 49402^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70147719979 and 70147720006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 876846461 + ... + 876846540.

Almost surely, 2^70147720040 is an apocalyptic number.

It is an amenable number.

70147720040 is an abundant number, since it is smaller than the sum of its proper divisors (87684650140).

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

70147720040 is a wasteful number, since it uses less digits than its factorization.

70147720040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753693012 (or 1753693008 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 32.

The spelling of 70147720040 in words is "seventy billion, one hundred forty-seven million, seven hundred twenty thousand, forty".