11747001621 has 8 divisors (see below), whose sum is σ = 15663585600. Its totient is φ = 7830876032.

The previous prime is 11747001601. The next prime is 11747001631. The reversal of 11747001621 is 12610074711.

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 11747001621 - 2⁵ = 11747001589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11747001601) 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, 49521 + ... + 161078.

It is an arithmetic number, because the mean of its divisors is an integer number (1957948200).

Almost surely, 2^11747001621 is an apocalyptic number.

It is an amenable number.

11747001621 is a deficient number, since it is larger than the sum of its proper divisors (3916583979).

11747001621 is a wasteful number, since it uses less digits than its factorization.

11747001621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229195.

The product of its (nonzero) digits is 2352, while the sum is 30.

The spelling of 11747001621 in words is "eleven billion, seven hundred forty-seven million, one thousand, six hundred twenty-one".