11897137476 has 189 divisors, whose sum is σ = 35759977981. Its totient is φ = 3335046624.

The previous prime is 11897137453. The next prime is 11897137493. The reversal of 11897137476 is 67473179811.

It is a happy number.

The square root of 11897137476 is 109074.

It is a perfect power (a square), and thus also a powerful number.

11897137476 is a `hidden beast` number, since 118 + 97 + 1 + 374 + 76 = 666.

11897137476 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8576612100 + 3320525376 = 92610^2 + 57624^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 224474266 + ... + 224474318.

Almost surely, 2^11897137476 is an apocalyptic number.

11897137476 is the 109074-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11897137476

11897137476 is an abundant number, since it is smaller than the sum of its proper divisors (23862840505).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11897137476 is an frugal number, since it uses more digits than its factorization.

11897137476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 65 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 54.

The spelling of 11897137476 in words is "eleven billion, eight hundred ninety-seven million, one hundred thirty-seven thousand, four hundred seventy-six".