670370673690 has 128 divisors (see below), whose sum is σ = 1865772679680. Its totient is φ = 170957039616.

The previous prime is 670370673647. The next prime is 670370673691. The reversal of 670370673690 is 96376073076.

It is a super-2 number, since 2×670370673690² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (670370673691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41803914 + ... + 41819946.

It is an arithmetic number, because the mean of its divisors is an integer number (14576349060).

Almost surely, 2^670370673690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670370673690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (932886339840).

670370673690 is an abundant number, since it is smaller than the sum of its proper divisors (1195402005990).

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

670370673690 is a wasteful number, since it uses less digits than its factorization.

670370673690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22805 (or 22799 counting only the distinct ones).

The product of its (nonzero) digits is 6001128, while the sum is 54.

The spelling of 670370673690 in words is "six hundred seventy billion, three hundred seventy million, six hundred seventy-three thousand, six hundred ninety".