1397051885667 has 8 divisors (see below), whose sum is σ = 1862741306896. Its totient is φ = 931365194112.

The previous prime is 1397051885617. The next prime is 1397051885683. The reversal of 1397051885667 is 7665881507931.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1397051885667 - 2²² = 1397047691363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1397051885598 and 1397051885607.

It is not an unprimeable number, because it can be changed into a prime (1397051885617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1695543 + ... + 2380959.

It is an arithmetic number, because the mean of its divisors is an integer number (232842663362).

Almost surely, 2^{1397051885667} is an apocalyptic number.

1397051885667 is a deficient number, since it is larger than the sum of its proper divisors (465689421229).

1397051885667 is an equidigital number, since it uses as much as digits as its factorization.

1397051885667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364837.

The product of its (nonzero) digits is 76204800, while the sum is 66.

The spelling of 1397051885667 in words is "one trillion, three hundred ninety-seven billion, fifty-one million, eight hundred eighty-five thousand, six hundred sixty-seven".