21525767671234 has 8 divisors (see below), whose sum is σ = 32289047702928. Its totient is φ = 10762751770260.

The previous prime is 21525767671217. The next prime is 21525767671241. The reversal of 21525767671234 is 43217676752512.

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

It is a super-2 number, since 2×21525767671234² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65828812 + ... + 66154999.

It is an arithmetic number, because the mean of its divisors is an integer number (4036130962866).

Almost surely, 2^{21525767671234} is an apocalyptic number.

21525767671234 is a deficient number, since it is larger than the sum of its proper divisors (10763280031694).

21525767671234 is a wasteful number, since it uses less digits than its factorization.

21525767671234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132065360.

The product of its digits is 29635200, while the sum is 58.

The spelling of 21525767671234 in words is "twenty-one trillion, five hundred twenty-five billion, seven hundred sixty-seven million, six hundred seventy-one thousand, two hundred thirty-four".