2662107138 has 72 divisors (see below), whose sum is σ = 6117450300. Its totient is φ = 836526528.

The previous prime is 2662107103. The next prime is 2662107139. The reversal of 2662107138 is 8317012662.

2662107138 is a `hidden beast` number, since 26 + 621 + 0 + 7 + 1 + 3 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1971626409 + 690480729 = 44403^2 + 26277^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2662107139) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1487148 + ... + 1488936.

Almost surely, 2^2662107138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2662107138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3058725150).

2662107138 is an abundant number, since it is smaller than the sum of its proper divisors (3455343162).

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

2662107138 is a wasteful number, since it uses less digits than its factorization.

2662107138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064 (or 2042 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 2662107138 is about 51595.6116157179. The cubic root of 2662107138 is about 1385.9317476682.

The spelling of 2662107138 in words is "two billion, six hundred sixty-two million, one hundred seven thousand, one hundred thirty-eight".