1866702339054 has 24 divisors (see below), whose sum is σ = 4622310554160. Its totient is φ = 533343525408.

The previous prime is 1866702339037. The next prime is 1866702339059. The reversal of 1866702339054 is 4509332076681.

1866702339054 is a `hidden beast` number, since 186 + 6 + 7 + 0 + 23 + 390 + 54 = 666.

It is a super-2 number, since 2×1866702339054² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1866702339059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7407548839 + ... + 7407549090.

It is an arithmetic number, because the mean of its divisors is an integer number (192596273090).

It is a 1-persistent number, because it is pandigital, but 2⋅1866702339054 = 3733404678108 is not.

Almost surely, 2^{1866702339054} is an apocalyptic number.

1866702339054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1866702339054 is an abundant number, since it is smaller than the sum of its proper divisors (2755608215106).

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

1866702339054 is a wasteful number, since it uses less digits than its factorization.

1866702339054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14815097944 (or 14815097941 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 1866702339054 in words is "one trillion, eight hundred sixty-six billion, seven hundred two million, three hundred thirty-nine thousand, fifty-four".