21741658862 has 16 divisors (see below), whose sum is σ = 40659725952. Its totient is φ = 8470776120.

The previous prime is 21741658859. The next prime is 21741658871. The reversal of 21741658862 is 26885614712.

21741658862 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 21741658862.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70589648 + ... + 70589955.

It is an arithmetic number, because the mean of its divisors is an integer number (2541232872).

Almost surely, 2^21741658862 is an apocalyptic number.

21741658862 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21741658862 is a deficient number, since it is larger than the sum of its proper divisors (18918067090).

21741658862 is a wasteful number, since it uses less digits than its factorization.

21741658862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141179623.

The product of its digits is 1290240, while the sum is 50.

The spelling of 21741658862 in words is "twenty-one billion, seven hundred forty-one million, six hundred fifty-eight thousand, eight hundred sixty-two".