4771450640 has 80 divisors (see below), whose sum is σ = 12112903296. Its totient is φ = 1733529600.

The previous prime is 4771450583. The next prime is 4771450703. The reversal of 4771450640 is 460541774.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 4771450594 and 4771450603.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1567520 + ... + 1570560.

Almost surely, 2^4771450640 is an apocalyptic number.

4771450640 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 4771450640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6056451648).

4771450640 is an abundant number, since it is smaller than the sum of its proper divisors (7341452656).

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

4771450640 is a wasteful number, since it uses less digits than its factorization.

4771450640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4848 (or 4842 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 4771450640 is about 69075.6877634961. The cubic root of 4771450640 is about 1683.5143082448.

The spelling of 4771450640 in words is "four billion, seven hundred seventy-one million, four hundred fifty thousand, six hundred forty".