21698124180059 has 16 divisors (see below), whose sum is σ = 22219372154880. Its totient is φ = 21179407418400.

The previous prime is 21698124179981. The next prime is 21698124180071. The reversal of 21698124180059 is 95008142189612.

It is a cyclic number.

It is not a de Polignac number, because 21698124180059 - 2²⁰ = 21698123131483 is a prime.

It is a super-2 number, since 2×21698124180059² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21698124179986 and 21698124180013.

It is not an unprimeable number, because it can be changed into a prime (21698124680059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41105402 + ... + 41629920.

It is an arithmetic number, because the mean of its divisors is an integer number (1388710759680).

Almost surely, 2^{21698124180059} is an apocalyptic number.

21698124180059 is a deficient number, since it is larger than the sum of its proper divisors (521247974821).

21698124180059 is a wasteful number, since it uses less digits than its factorization.

21698124180059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526930.

The product of its (nonzero) digits is 2488320, while the sum is 56.

The spelling of 21698124180059 in words is "twenty-one trillion, six hundred ninety-eight billion, one hundred twenty-four million, one hundred eighty thousand, fifty-nine".