101807797638 has 16 divisors (see below), whose sum is σ = 207947842560. Its totient is φ = 33213891336.

The previous prime is 101807797633. The next prime is 101807797667. The reversal of 101807797638 is 836797708101.

101807797638 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101807797631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180509998 + ... + 180510561.

It is an arithmetic number, because the mean of its divisors is an integer number (12996740160).

Almost surely, 2^101807797638 is an apocalyptic number.

101807797638 is an abundant number, since it is smaller than the sum of its proper divisors (106140044922).

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

101807797638 is a wasteful number, since it uses less digits than its factorization.

101807797638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361020611.

The product of its (nonzero) digits is 3556224, while the sum is 57.

The spelling of 101807797638 in words is "one hundred one billion, eight hundred seven million, seven hundred ninety-seven thousand, six hundred thirty-eight".