7642351808 has 112 divisors (see below), whose sum is σ = 18762537024. Its totient is φ = 3007549440.

The previous prime is 7642351807. The next prime is 7642351811. The reversal of 7642351808 is 8081532467.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (7642351807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1143998 + ... + 1150658.

It is an arithmetic number, because the mean of its divisors is an integer number (167522652).

Almost surely, 2^7642351808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7642351808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9381268512).

7642351808 is an abundant number, since it is smaller than the sum of its proper divisors (11120185216).

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

7642351808 is a wasteful number, since it uses less digits than its factorization.

7642351808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6890 (or 6880 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 7642351808 is about 87420.5456857826. The cubic root of 7642351808 is about 1969.7404734258.

The spelling of 7642351808 in words is "seven billion, six hundred forty-two million, three hundred fifty-one thousand, eight hundred eight".