21174061137 has 8 divisors (see below), whose sum is σ = 28234370304. Its totient is φ = 14114896368.

The previous prime is 21174061093. The next prime is 21174061163. The reversal of 21174061137 is 73116047112.

It is a happy number.

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

It is not a de Polignac number, because 21174061137 - 2¹⁰ = 21174060113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21174061098 and 21174061107.

It is not an unprimeable number, because it can be changed into a prime (21174061637) 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, 241953 + ... + 317630.

It is an arithmetic number, because the mean of its divisors is an integer number (3529296288).

Almost surely, 2^21174061137 is an apocalyptic number.

It is an amenable number.

21174061137 is a deficient number, since it is larger than the sum of its proper divisors (7060309167).

21174061137 is a wasteful number, since it uses less digits than its factorization.

21174061137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572199.

The product of its (nonzero) digits is 7056, while the sum is 33.

The spelling of 21174061137 in words is "twenty-one billion, one hundred seventy-four million, sixty-one thousand, one hundred thirty-seven".