101820777338 has 32 divisors (see below), whose sum is σ = 176514024960. Its totient is φ = 43148286720.

The previous prime is 101820777319. The next prime is 101820777341. The reversal of 101820777338 is 833777028101.

It is a junction number, because it is equal to n+sod(n) for n = 101820777292 and 101820777301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589583 + ... + 742461.

It is an arithmetic number, because the mean of its divisors is an integer number (5516063280).

Almost surely, 2^101820777338 is an apocalyptic number.

101820777338 is a deficient number, since it is larger than the sum of its proper divisors (74693247622).

101820777338 is a wasteful number, since it uses less digits than its factorization.

101820777338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153422.

The product of its (nonzero) digits is 395136, while the sum is 47.

The spelling of 101820777338 in words is "one hundred one billion, eight hundred twenty million, seven hundred seventy-seven thousand, three hundred thirty-eight".