21988268200062 has 16 divisors (see below), whose sum is σ = 48862818222480. Its totient is φ = 7329422733336.

The previous prime is 21988268200061. The next prime is 21988268200097. The reversal of 21988268200062 is 26000286288912.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 407190151853 = 21988268200062 / (2 + 1 + 9 + 8 + 8 + 2 + 6 + 8 + 2 + 0 + 0 + 0 + 6 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 21988268199981 and 21988268200008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21988268200061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203595075873 + ... + 203595075980.

It is an arithmetic number, because the mean of its divisors is an integer number (3053926138905).

Almost surely, 2^{21988268200062} is an apocalyptic number.

21988268200062 is an abundant number, since it is smaller than the sum of its proper divisors (26874550022418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21988268200062 is a wasteful number, since it uses less digits than its factorization.

21988268200062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407190151864 (or 407190151858 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The spelling of 21988268200062 in words is "twenty-one trillion, nine hundred eighty-eight billion, two hundred sixty-eight million, two hundred thousand, sixty-two".