21098370024 has 192 divisors, whose sum is σ = 60886425600. Its totient is φ = 6840904896.

The previous prime is 21098369977. The next prime is 21098370071. The reversal of 21098370024 is 42007389012.

It is an interprime number because it is at equal distance from previous prime (21098369977) and next prime (21098370071).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32015407 + ... + 32016065.

It is an arithmetic number, because the mean of its divisors is an integer number (317116800).

Almost surely, 2^21098370024 is an apocalyptic number.

21098370024 is a gapful number since it is divisible by the number (24) 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 21098370024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30443212800).

21098370024 is an abundant number, since it is smaller than the sum of its proper divisors (39788055576).

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

21098370024 is a wasteful number, since it uses less digits than its factorization.

21098370024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 21098370024 in words is "twenty-one billion, ninety-eight million, three hundred seventy thousand, twenty-four".