21962992589400 has 96 divisors (see below), whose sum is σ = 68338382648400. Its totient is φ = 5835025497600.

The previous prime is 21962992589393. The next prime is 21962992589407. The reversal of 21962992589400 is 498529926912.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21962992589393) and next prime (21962992589407).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21962992589407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67877611 + ... + 68200410.

Almost surely, 2^{21962992589400} is an apocalyptic number.

21962992589400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21962992589400 is an abundant number, since it is smaller than the sum of its proper divisors (46375390059000).

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

21962992589400 is a wasteful number, since it uses less digits than its factorization.

21962992589400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136078309 (or 136078300 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 66.

The spelling of 21962992589400 in words is "twenty-one trillion, nine hundred sixty-two billion, nine hundred ninety-two million, five hundred eighty-nine thousand, four hundred".