2421621051000 has 128 divisors (see below), whose sum is σ = 7557410764800. Its totient is φ = 645598684800.

The previous prime is 2421621050999. The next prime is 2421621051011. The reversal of 2421621051000 is 1501261242.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11726641 + ... + 11931359.

It is an arithmetic number, because the mean of its divisors is an integer number (59042271600).

Almost surely, 2^{2421621051000} is an apocalyptic number.

2421621051000 is a gapful number since it is divisible by the number (20) 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 2421621051000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3778705382400).

2421621051000 is an abundant number, since it is smaller than the sum of its proper divisors (5135789713800).

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

2421621051000 is a wasteful number, since it uses less digits than its factorization.

2421621051000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208686 (or 208672 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The spelling of 2421621051000 in words is "two trillion, four hundred twenty-one billion, six hundred twenty-one million, fifty-one thousand".