70397706772 has 6 divisors (see below), whose sum is σ = 123195986858. Its totient is φ = 35198853384.

The previous prime is 70397706767. The next prime is 70397706791. The reversal of 70397706772 is 27760779307.

It can be written as a sum of positive squares in only one way, i.e., 70333161616 + 64545156 = 265204^2 + 8034^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8799713343 + ... + 8799713350.

Almost surely, 2^70397706772 is an apocalyptic number.

It is an amenable number.

70397706772 is a deficient number, since it is larger than the sum of its proper divisors (52798280086).

70397706772 is a wasteful number, since it uses less digits than its factorization.

70397706772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17599426697 (or 17599426695 counting only the distinct ones).

The product of its (nonzero) digits is 5445468, while the sum is 55.

The spelling of 70397706772 in words is "seventy billion, three hundred ninety-seven million, seven hundred six thousand, seven hundred seventy-two".