11937571145 has 8 divisors (see below), whose sum is σ = 14416328904. Its totient is φ = 9489227904.

The previous prime is 11937571141. The next prime is 11937571153. The reversal of 11937571145 is 54117573911.

It can be written as a sum of positive squares in 4 ways, for example, as 271195024 + 11666376121 = 16468^2 + 108011^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11937571145 - 2² = 11937571141 is a prime.

It is a super-2 number, since 2×11937571145² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11937571096 and 11937571105.

It is not an unprimeable number, because it can be changed into a prime (11937571141) 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, 7602764 + ... + 7604333.

It is an arithmetic number, because the mean of its divisors is an integer number (1802041113).

Almost surely, 2^11937571145 is an apocalyptic number.

It is an amenable number.

11937571145 is a deficient number, since it is larger than the sum of its proper divisors (2478757759).

11937571145 is a wasteful number, since it uses less digits than its factorization.

11937571145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15207259.

The product of its digits is 132300, while the sum is 44.

The spelling of 11937571145 in words is "eleven billion, nine hundred thirty-seven million, five hundred seventy-one thousand, one hundred forty-five".