21862899542252 has 24 divisors (see below), whose sum is σ = 38534791196160. Its totient is φ = 10853152768080.

The previous prime is 21862899542167. The next prime is 21862899542261. The reversal of 21862899542252 is 25224599826812.

It is a super-2 number, since 2×21862899542252² (a number of 27 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 23743748 + ... + 24647339.

It is an arithmetic number, because the mean of its divisors is an integer number (1605616299840).

Almost surely, 2^{21862899542252} is an apocalyptic number.

It is an amenable number.

21862899542252 is a deficient number, since it is larger than the sum of its proper divisors (16671891653908).

21862899542252 is a wasteful number, since it uses less digits than its factorization.

21862899542252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48391901 (or 48391899 counting only the distinct ones).

The product of its digits is 99532800, while the sum is 65.

The spelling of 21862899542252 in words is "twenty-one trillion, eight hundred sixty-two billion, eight hundred ninety-nine million, five hundred forty-two thousand, two hundred fifty-two".