138120237848846 has 32 divisors (see below), whose sum is σ = 233809761362400. Its totient is φ = 60616719031680.

The previous prime is 138120237848819. The next prime is 138120237848867. The reversal of 138120237848846 is 648848732021831.

It is a super-2 number, since 2×138120237848846² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158343476 + ... + 159213368.

It is an arithmetic number, because the mean of its divisors is an integer number (7306555042575).

Almost surely, 2^{138120237848846} is an apocalyptic number.

138120237848846 is a deficient number, since it is larger than the sum of its proper divisors (95689523513554).

138120237848846 is a wasteful number, since it uses less digits than its factorization.

138120237848846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118804.

The product of its (nonzero) digits is 99090432, while the sum is 65.

The spelling of 138120237848846 in words is "one hundred thirty-eight trillion, one hundred twenty billion, two hundred thirty-seven million, eight hundred forty-eight thousand, eight hundred forty-six".