1970642173667 has 4 divisors (see below), whose sum is σ = 1970646303960. Its totient is φ = 1970638043376.

The previous prime is 1970642173553. The next prime is 1970642173769. The reversal of 1970642173667 is 7663712460791.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1970642173667 - 2⁸ = 1970642173411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1970642173267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1239413 + ... + 2340390.

It is an arithmetic number, because the mean of its divisors is an integer number (492661575990).

Almost surely, 2^{1970642173667} is an apocalyptic number.

1970642173667 is a deficient number, since it is larger than the sum of its proper divisors (4130293).

1970642173667 is an equidigital number, since it uses as much as digits as its factorization.

1970642173667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4130292.

The product of its (nonzero) digits is 16003008, while the sum is 59.

The spelling of 1970642173667 in words is "one trillion, nine hundred seventy billion, six hundred forty-two million, one hundred seventy-three thousand, six hundred sixty-seven".