96421543920 has 720 divisors, whose sum is σ = 370080741888. Its totient is φ = 22443632640.

The previous prime is 96421543903. The next prime is 96421543931. The reversal of 96421543920 is 2934512469.

96421543920 is a `hidden beast` number, since 9 + 64 + 21 + 543 + 9 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a super-2 number, since 2×96421543920² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 366621709 + ... + 366621971.

Almost surely, 2^96421543920 is an apocalyptic number.

96421543920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 96421543920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185040370944).

96421543920 is an abundant number, since it is smaller than the sum of its proper divisors (273659197968).

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

96421543920 is a wasteful number, since it uses less digits than its factorization.

96421543920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 96421543920 in words is "ninety-six billion, four hundred twenty-one million, five hundred forty-three thousand, nine hundred twenty".