670371993837 has 144 divisors (see below), whose sum is σ = 1251734300544. Its totient is φ = 336562387200.

The previous prime is 670371993829. The next prime is 670371993853. The reversal of 670371993837 is 738399173076.

670371993837 is a `hidden beast` number, since 67 + 0 + 3 + 7 + 199 + 383 + 7 = 666.

It is not a de Polignac number, because 670371993837 - 2³ = 670371993829 is a prime.

It is a super-2 number, since 2×670371993837² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670371993877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 48003618 + ... + 48017580.

Almost surely, 2^670371993837 is an apocalyptic number.

It is an amenable number.

670371993837 is a deficient number, since it is larger than the sum of its proper divisors (581362306707).

670371993837 is a wasteful number, since it uses less digits than its factorization.

670371993837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14112 (or 14078 counting only the distinct ones).

The product of its (nonzero) digits is 36006768, while the sum is 63.

The spelling of 670371993837 in words is "six hundred seventy billion, three hundred seventy-one million, nine hundred ninety-three thousand, eight hundred thirty-seven".