11621756273 has 8 divisors (see below), whose sum is σ = 12142838400. Its totient is φ = 11101989888.

The previous prime is 11621756269. The next prime is 11621756297. The reversal of 11621756273 is 37265712611.

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 11621756273 - 2² = 11621756269 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11621756273.

It is not an unprimeable number, because it can be changed into a prime (11621756233) 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, 310853 + ... + 346226.

It is an arithmetic number, because the mean of its divisors is an integer number (1517854800).

Almost surely, 2^11621756273 is an apocalyptic number.

It is an amenable number.

11621756273 is a deficient number, since it is larger than the sum of its proper divisors (521082127).

11621756273 is an equidigital number, since it uses as much as digits as its factorization.

11621756273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657871.

The product of its digits is 105840, while the sum is 41.

The spelling of 11621756273 in words is "eleven billion, six hundred twenty-one million, seven hundred fifty-six thousand, two hundred seventy-three".