70724166724 has 12 divisors (see below), whose sum is σ = 124307761900. Its totient is φ = 35207663328.

The previous prime is 70724166719. The next prime is 70724166763. The reversal of 70724166724 is 42766142707.

It can be written as a sum of positive squares in 2 ways, for example, as 48188152324 + 22536014400 = 219518^2 + 150120^2 .

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 3 ways as a sum of consecutive naturals, for example, 38603979 + ... + 38605810.

Almost surely, 2^70724166724 is an apocalyptic number.

It is an amenable number.

70724166724 is a deficient number, since it is larger than the sum of its proper divisors (53583595176).

70724166724 is a wasteful number, since it uses less digits than its factorization.

70724166724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77210022 (or 77210020 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 46.

The spelling of 70724166724 in words is "seventy billion, seven hundred twenty-four million, one hundred sixty-six thousand, seven hundred twenty-four".