70205909072 has 40 divisors (see below), whose sum is σ = 146565697320. Its totient is φ = 32385392640.

The previous prime is 70205909051. The next prime is 70205909083. The reversal of 70205909072 is 27090950207.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10775270416 + 59430638656 = 103804^2 + 243784^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303572 + ... + 482252.

It is an arithmetic number, because the mean of its divisors is an integer number (3664142433).

Almost surely, 2^70205909072 is an apocalyptic number.

It is an amenable number.

70205909072 is an abundant number, since it is smaller than the sum of its proper divisors (76359788248).

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

70205909072 is a wasteful number, since it uses less digits than its factorization.

70205909072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180591 (or 180585 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 41.

The spelling of 70205909072 in words is "seventy billion, two hundred five million, nine hundred nine thousand, seventy-two".