7431820648 has 32 divisors (see below), whose sum is σ = 15928920000. Its totient is φ = 3184348032.

The previous prime is 7431820631. The next prime is 7431820687. The reversal of 7431820648 is 8460281347.

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, 291103 + ... + 315601.

It is an arithmetic number, because the mean of its divisors is an integer number (497778750).

Almost surely, 2^7431820648 is an apocalyptic number.

It is an amenable number.

7431820648 is an abundant number, since it is smaller than the sum of its proper divisors (8497099352).

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

7431820648 is a wasteful number, since it uses less digits than its factorization.

7431820648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29929 (or 29925 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 7431820648 is about 86208.0080270969. The cubic root of 7431820648 is about 1951.4843528735.

The spelling of 7431820648 in words is "seven billion, four hundred thirty-one million, eight hundred twenty thousand, six hundred forty-eight".