4576721349840 has 40 divisors (see below), whose sum is σ = 14187836185248. Its totient is φ = 1220459026560.

The previous prime is 4576721349757. The next prime is 4576721349853. The reversal of 4576721349840 is 489431276754.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9534835906 + ... + 9534836385.

It is a 1-persistent number, because it is pandigital, but 2⋅4576721349840 = 9153442699680 is not.

Almost surely, 2^{4576721349840} is an apocalyptic number.

4576721349840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4576721349840 is an abundant number, since it is smaller than the sum of its proper divisors (9611114835408).

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

4576721349840 is a wasteful number, since it uses less digits than its factorization.

4576721349840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19069672307 (or 19069672301 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 60.

The spelling of 4576721349840 in words is "four trillion, five hundred seventy-six billion, seven hundred twenty-one million, three hundred forty-nine thousand, eight hundred forty".