7648932138 has 16 divisors (see below), whose sum is σ = 15324662496. Its totient is φ = 2545177680.

The previous prime is 7648932133. The next prime is 7648932143. The reversal of 7648932138 is 8312398467.

It is an interprime number because it is at equal distance from previous prime (7648932133) and next prime (7648932143).

It is not an unprimeable number, because it can be changed into a prime (7648932133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1112881 + ... + 1119732.

It is an arithmetic number, because the mean of its divisors is an integer number (957791406).

Almost surely, 2^7648932138 is an apocalyptic number.

7648932138 is an abundant number, since it is smaller than the sum of its proper divisors (7675730358).

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

7648932138 is a wasteful number, since it uses less digits than its factorization.

7648932138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2233189.

The product of its digits is 1741824, while the sum is 51.

The square root of 7648932138 is about 87458.1736488934. The cubic root of 7648932138 is about 1970.3056495357.

The spelling of 7648932138 in words is "seven billion, six hundred forty-eight million, nine hundred thirty-two thousand, one hundred thirty-eight".