21477632626334 has 8 divisors (see below), whose sum is σ = 33255689227968. Its totient is φ = 10392402883680.

The previous prime is 21477632626319. The next prime is 21477632626409. The reversal of 21477632626334 is 43362623677412.

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

It is a super-2 number, since 2×21477632626334² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21477632626334.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173206714667 + ... + 173206714790.

It is an arithmetic number, because the mean of its divisors is an integer number (4156961153496).

Almost surely, 2^{21477632626334} is an apocalyptic number.

21477632626334 is a deficient number, since it is larger than the sum of its proper divisors (11778056601634).

21477632626334 is a wasteful number, since it uses less digits than its factorization.

21477632626334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346413429490.

The product of its digits is 36578304, while the sum is 56.

The spelling of 21477632626334 in words is "twenty-one trillion, four hundred seventy-seven billion, six hundred thirty-two million, six hundred twenty-six thousand, three hundred thirty-four".