11621732345 has 8 divisors (see below), whose sum is σ = 13981209864. Its totient is φ = 9273965184.

The previous prime is 11621732329. The next prime is 11621732363. The reversal of 11621732345 is 54323712611.

It can be written as a sum of positive squares in 4 ways, for example, as 4165927936 + 7455804409 = 64544^2 + 86347^2 .

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 11621732345 - 2⁴ = 11621732329 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2925404 + ... + 2929373.

It is an arithmetic number, because the mean of its divisors is an integer number (1747651233).

Almost surely, 2^11621732345 is an apocalyptic number.

It is an amenable number.

11621732345 is a deficient number, since it is larger than the sum of its proper divisors (2359477519).

11621732345 is an equidigital number, since it uses as much as digits as its factorization.

11621732345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5855179.

The product of its digits is 30240, while the sum is 35.

The spelling of 11621732345 in words is "eleven billion, six hundred twenty-one million, seven hundred thirty-two thousand, three hundred forty-five".