11970371911690 has 8 divisors (see below), whose sum is σ = 21546669441060. Its totient is φ = 4788148764672.

The previous prime is 11970371911661. The next prime is 11970371911691. The reversal of 11970371911690 is 9611917307911.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11433169402209 + 537202509481 = 3381297^2 + 732941^2 .

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

It is a super-2 number, since 2×11970371911690² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11970371911691) 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, 598518595575 + ... + 598518595594.

Almost surely, 2^{11970371911690} is an apocalyptic number.

11970371911690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11970371911690 is a deficient number, since it is larger than the sum of its proper divisors (9576297529370).

11970371911690 is a wasteful number, since it uses less digits than its factorization.

11970371911690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197037191176.

The product of its (nonzero) digits is 642978, while the sum is 55.

The spelling of 11970371911690 in words is "eleven trillion, nine hundred seventy billion, three hundred seventy-one million, nine hundred eleven thousand, six hundred ninety".