670714388728 has 16 divisors (see below), whose sum is σ = 1278205700760. Its totient is φ = 329859535200.

The previous prime is 670714388717. The next prime is 670714388767. The reversal of 670714388728 is 827883417076.

It is a super-3 number, since 3×670714388728³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 687206878 + ... + 687207853.

Almost surely, 2^670714388728 is an apocalyptic number.

It is an amenable number.

670714388728 is a deficient number, since it is larger than the sum of its proper divisors (607491312032).

670714388728 is a wasteful number, since it uses less digits than its factorization.

670714388728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374414798 (or 1374414794 counting only the distinct ones).

The product of its (nonzero) digits is 25288704, while the sum is 61.

The spelling of 670714388728 in words is "six hundred seventy billion, seven hundred fourteen million, three hundred eighty-eight thousand, seven hundred twenty-eight".