1197637652711 has 4 divisors (see below), whose sum is σ = 1260671213400. Its totient is φ = 1134604092024.

The previous prime is 1197637652707. The next prime is 1197637652767. The reversal of 1197637652711 is 1172567367911.

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 1197637652711 - 2² = 1197637652707 is a prime.

It is a super-2 number, since 2×1197637652711² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1197637672711) 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 3 ways as a sum of consecutive naturals, for example, 31516780316 + ... + 31516780353.

It is an arithmetic number, because the mean of its divisors is an integer number (315167803350).

Almost surely, 2^{1197637652711} is an apocalyptic number.

1197637652711 is a deficient number, since it is larger than the sum of its proper divisors (63033560689).

1197637652711 is an equidigital number, since it uses as much as digits as its factorization.

1197637652711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63033560688.

The product of its digits is 3333960, while the sum is 56.

The spelling of 1197637652711 in words is "one trillion, one hundred ninety-seven billion, six hundred thirty-seven million, six hundred fifty-two thousand, seven hundred eleven".