21734015167741 has 8 divisors (see below), whose sum is σ = 21880010640600. Its totient is φ = 21588021423168.

The previous prime is 21734015167703. The next prime is 21734015167757. The reversal of 21734015167741 is 14776151043712.

It can be written as a sum of positive squares in 4 ways, for example, as 7082230272516 + 14651784895225 = 2661246^2 + 3827765^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21734015167741 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 (21734015167771) 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, 33970495 + ... + 34604371.

It is an arithmetic number, because the mean of its divisors is an integer number (2735001330075).

Almost surely, 2^{21734015167741} is an apocalyptic number.

It is an amenable number.

21734015167741 is a deficient number, since it is larger than the sum of its proper divisors (145995472859).

21734015167741 is a wasteful number, since it uses less digits than its factorization.

21734015167741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864143.

The product of its (nonzero) digits is 987840, while the sum is 49.

The spelling of 21734015167741 in words is "twenty-one trillion, seven hundred thirty-four billion, fifteen million, one hundred sixty-seven thousand, seven hundred forty-one".