21200017962 has 8 divisors (see below), whose sum is σ = 42400035936. Its totient is φ = 7066672652.

The previous prime is 21200017921. The next prime is 21200018003. The reversal of 21200017962 is 26971000212.

It is an interprime number because it is at equal distance from previous prime (21200017921) and next prime (21200018003).

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

21200017962 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1766668158 + ... + 1766668169.

It is an arithmetic number, because the mean of its divisors is an integer number (5300004492).

Almost surely, 2^21200017962 is an apocalyptic number.

21200017962 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21200017962 is a wasteful number, since it uses less digits than its factorization.

21200017962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3533336332.

The product of its (nonzero) digits is 3024, while the sum is 30.

The spelling of 21200017962 in words is "twenty-one billion, two hundred million, seventeen thousand, nine hundred sixty-two".