1866835500054 has 32 divisors (see below), whose sum is σ = 4267093257216. Its totient is φ = 533376485760.

The previous prime is 1866835500041. The next prime is 1866835500097. The reversal of 1866835500054 is 4500055386681.

It is a happy number.

It is a congruent number.

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, 7887619 + ... + 8120849.

It is an arithmetic number, because the mean of its divisors is an integer number (133346664288).

Almost surely, 2^{1866835500054} is an apocalyptic number.

1866835500054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1866835500054 is an abundant number, since it is smaller than the sum of its proper divisors (2400257757162).

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

1866835500054 is a wasteful number, since it uses less digits than its factorization.

1866835500054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423820.

The product of its (nonzero) digits is 3456000, while the sum is 51.

The spelling of 1866835500054 in words is "one trillion, eight hundred sixty-six billion, eight hundred thirty-five million, five hundred thousand, fifty-four".