70006519872 has 42 divisors (see below), whose sum is σ = 200661050798. Its totient is φ = 23335506432.

The previous prime is 70006519867. The next prime is 70006519889. The reversal of 70006519872 is 27891560007.

It can be written as a sum of positive squares in only one way, i.e., 61060386816 + 8946133056 = 247104^2 + 94584^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60768973 + ... + 60770124.

Almost surely, 2^70006519872 is an apocalyptic number.

70006519872 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

70006519872 is an abundant number, since it is smaller than the sum of its proper divisors (130654530926).

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

70006519872 is a wasteful number, since it uses less digits than its factorization.

70006519872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121539115 (or 121539102 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 70006519872 in words is "seventy billion, six million, five hundred nineteen thousand, eight hundred seventy-two".