4781447399040 has 192 divisors, whose sum is σ = 16503421451040. Its totient is φ = 1176971587584.

The previous prime is 4781447399039. The next prime is 4781447399081. The reversal of 4781447399040 is 409937441874.

It is a tau number, because it is divible by the number of its divisors (192).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7043382 + ... + 7692341.

Almost surely, 2^{4781447399040} is an apocalyptic number.

4781447399040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4781447399040 is an abundant number, since it is smaller than the sum of its proper divisors (11721974052000).

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

4781447399040 is a wasteful number, since it uses less digits than its factorization.

4781447399040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14735771 (or 14735746 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 60.

The spelling of 4781447399040 in words is "four trillion, seven hundred eighty-one billion, four hundred forty-seven million, three hundred ninety-nine thousand, forty".