1089750651197 has 4 divisors (see below), whose sum is σ = 1173577624380. Its totient is φ = 1005923678016.

The previous prime is 1089750651181. The next prime is 1089750651221. The reversal of 1089750651197 is 7911560579801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 286466871076 + 803283780121 = 535226^2 + 896261^2 .

It is a cyclic number.

It is not a de Polignac number, because 1089750651197 - 2⁴ = 1089750651181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089750851197) 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, 41913486572 + ... + 41913486597.

It is an arithmetic number, because the mean of its divisors is an integer number (293394406095).

Almost surely, 2^{1089750651197} is an apocalyptic number.

It is an amenable number.

1089750651197 is a deficient number, since it is larger than the sum of its proper divisors (83826973183).

1089750651197 is an equidigital number, since it uses as much as digits as its factorization.

1089750651197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83826973182.

The product of its (nonzero) digits is 4762800, while the sum is 59.

The spelling of 1089750651197 in words is "one trillion, eighty-nine billion, seven hundred fifty million, six hundred fifty-one thousand, one hundred ninety-seven".