4521779998240 has 192 divisors, whose sum is σ = 11917462919040. Its totient is φ = 1611225907200.

The previous prime is 4521779998231. The next prime is 4521779998301. The reversal of 4521779998240 is 428999771254.

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 31 ways as a sum of consecutive naturals, for example, 56446215 + ... + 56526265.

It is an arithmetic number, because the mean of its divisors is an integer number (62070119370).

Almost surely, 2^{4521779998240} is an apocalyptic number.

4521779998240 is a gapful number since it is divisible by the number (40) 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 4521779998240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5958731459520).

4521779998240 is an abundant number, since it is smaller than the sum of its proper divisors (7395682920800).

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

4521779998240 is a wasteful number, since it uses less digits than its factorization.

4521779998240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81195 (or 81187 counting only the distinct ones).

The product of its (nonzero) digits is 91445760, while the sum is 67.

The spelling of 4521779998240 in words is "four trillion, five hundred twenty-one billion, seven hundred seventy-nine million, nine hundred ninety-eight thousand, two hundred forty".