7662402138 has 8 divisors (see below), whose sum is σ = 15324804288. Its totient is φ = 2554134044.

The previous prime is 7662402133. The next prime is 7662402179. The reversal of 7662402138 is 8312042667.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

7662402138 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 7662402096 and 7662402105.

It is not an unprimeable number, because it can be changed into a prime (7662402131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638533506 + ... + 638533517.

It is an arithmetic number, because the mean of its divisors is an integer number (1915600536).

Almost surely, 2^7662402138 is an apocalyptic number.

7662402138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7662402138 is a wasteful number, since it uses less digits than its factorization.

7662402138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277067028.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 7662402138 is about 87535.1480149545. The cubic root of 7662402138 is about 1971.4615604781.

The spelling of 7662402138 in words is "seven billion, six hundred sixty-two million, four hundred two thousand, one hundred thirty-eight".