21714627572 has 36 divisors (see below), whose sum is σ = 41784899940. Its totient is φ = 9866588160.

The previous prime is 21714627559. The next prime is 21714627593. The reversal of 21714627572 is 27572641712.

It can be written as a sum of positive squares in 2 ways, for example, as 11725424656 + 9989202916 = 108284^2 + 99946^2 .

It is a super-3 number, since 3×21714627572³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1604498 + ... + 1617974.

It is an arithmetic number, because the mean of its divisors is an integer number (1160691665).

Almost surely, 2^21714627572 is an apocalyptic number.

21714627572 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21714627572 is a deficient number, since it is larger than the sum of its proper divisors (20070272368).

21714627572 is a wasteful number, since it uses less digits than its factorization.

21714627572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16832 (or 16819 counting only the distinct ones).

The product of its digits is 329280, while the sum is 44.

The spelling of 21714627572 in words is "twenty-one billion, seven hundred fourteen million, six hundred twenty-seven thousand, five hundred seventy-two".