21734011025400 has 48 divisors (see below), whose sum is σ = 67375434180600. Its totient is φ = 5795736273280.

The previous prime is 21734011025399. The next prime is 21734011025401. The reversal of 21734011025400 is 452011043712.

It is an interprime number because it is at equal distance from previous prime (21734011025399) and next prime (21734011025401).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21734011025401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18111675255 + ... + 18111676454.

Almost surely, 2^{21734011025400} is an apocalyptic number.

21734011025400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21734011025400 is an abundant number, since it is smaller than the sum of its proper divisors (45641423155200).

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

21734011025400 is a wasteful number, since it uses less digits than its factorization.

21734011025400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36223351728 (or 36223351719 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The spelling of 21734011025400 in words is "twenty-one trillion, seven hundred thirty-four billion, eleven million, twenty-five thousand, four hundred".