10791387738 has 72 divisors (see below), whose sum is σ = 24901924320. Its totient is φ = 3376771200.

The previous prime is 10791387703. The next prime is 10791387757. The reversal of 10791387738 is 83778319701.

It is a happy number.

10791387738 is a `hidden beast` number, since 107 + 91 + 387 + 73 + 8 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2177163 + ... + 2182113.

It is an arithmetic number, because the mean of its divisors is an integer number (345860060).

Almost surely, 2^10791387738 is an apocalyptic number.

10791387738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10791387738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12450962160).

10791387738 is an abundant number, since it is smaller than the sum of its proper divisors (14110536582).

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

10791387738 is a wasteful number, since it uses less digits than its factorization.

10791387738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5412 (or 5392 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 54.

The spelling of 10791387738 in words is "ten billion, seven hundred ninety-one million, three hundred eighty-seven thousand, seven hundred thirty-eight".