1397245584187 has 4 divisors (see below), whose sum is σ = 1470784825480. Its totient is φ = 1323706342896.

The previous prime is 1397245584151. The next prime is 1397245584191. The reversal of 1397245584187 is 7814855427931.

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 1397245584187 - 2¹⁵ = 1397245551419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1397245584127) 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, 36769620618 + ... + 36769620655.

It is an arithmetic number, because the mean of its divisors is an integer number (367696206370).

Almost surely, 2^{1397245584187} is an apocalyptic number.

1397245584187 is a deficient number, since it is larger than the sum of its proper divisors (73539241293).

1397245584187 is an equidigital number, since it uses as much as digits as its factorization.

1397245584187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73539241292.

The product of its digits is 67737600, while the sum is 64.

The spelling of 1397245584187 in words is "one trillion, three hundred ninety-seven billion, two hundred forty-five million, five hundred eighty-four thousand, one hundred eighty-seven".