18377874055541 has 48 divisors (see below), whose sum is σ = 26042234456448. Its totient is φ = 12523121251200.

The previous prime is 18377874055537. The next prime is 18377874055553. The reversal of 18377874055541 is 14555047877381.

It is not a de Polignac number, because 18377874055541 - 2² = 18377874055537 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18377874055501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25067330 + ... + 25790051.

It is an arithmetic number, because the mean of its divisors is an integer number (542546551176).

Almost surely, 2^{18377874055541} is an apocalyptic number.

18377874055541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18377874055541 is a deficient number, since it is larger than the sum of its proper divisors (7664360400907).

18377874055541 is a wasteful number, since it uses less digits than its factorization.

18377874055541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50857450 (or 50857431 counting only the distinct ones).

The product of its (nonzero) digits is 131712000, while the sum is 65.

The spelling of 18377874055541 in words is "eighteen trillion, three hundred seventy-seven billion, eight hundred seventy-four million, fifty-five thousand, five hundred forty-one".