670639793476 has 9 divisors (see below), whose sum is σ = 1173622504831. Its totient is φ = 335319077812.

The previous prime is 670639793431. The next prime is 670639793491. The reversal of 670639793476 is 674397936076.

The square root of 670639793476 is 818926.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1433121 + ... + 1842583.

Almost surely, 2^670639793476 is an apocalyptic number.

670639793476 is the 818926-th square number.

It is an amenable number.

670639793476 is a deficient number, since it is larger than the sum of its proper divisors (502982711355).

670639793476 is an frugal number, since it uses more digits than its factorization.

670639793476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818930 (or 409465 counting only the distinct ones).

The product of its (nonzero) digits is 216040608, while the sum is 67.

The spelling of 670639793476 in words is "six hundred seventy billion, six hundred thirty-nine million, seven hundred ninety-three thousand, four hundred seventy-six".