1388791970106 has 8 divisors (see below), whose sum is σ = 2777583940224. Its totient is φ = 462930656700.

The previous prime is 1388791970051. The next prime is 1388791970119. The reversal of 1388791970106 is 6010791978831.

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

1388791970106 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1388791970106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115732664170 + ... + 115732664181.

It is an arithmetic number, because the mean of its divisors is an integer number (347197992528).

Almost surely, 2^{1388791970106} is an apocalyptic number.

1388791970106 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.

1388791970106 is a wasteful number, since it uses less digits than its factorization.

1388791970106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231465328356.

The product of its (nonzero) digits is 4572288, while the sum is 60.

The spelling of 1388791970106 in words is "one trillion, three hundred eighty-eight billion, seven hundred ninety-one million, nine hundred seventy thousand, one hundred six".