54186140907612 has 144 divisors (see below), whose sum is σ = 158752708371712. Its totient is φ = 15262880544000.

The previous prime is 54186140907611. The next prime is 54186140907617. The reversal of 54186140907612 is 21670904168145.

54186140907612 is a `hidden beast` number, since 5 + 4 + 1 + 8 + 6 + 14 + 0 + 9 + 0 + 7 + 612 = 666.

It is a super-2 number, since 2×54186140907612² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54186140907611) 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, 40755123 + ... + 42063669.

Almost surely, 2^{54186140907612} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54186140907612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79376354185856).

54186140907612 is an abundant number, since it is smaller than the sum of its proper divisors (104566567464100).

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

54186140907612 is a wasteful number, since it uses less digits than its factorization.

54186140907612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310888 (or 1310883 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 54186140907612 in words is "fifty-four trillion, one hundred eighty-six billion, one hundred forty million, nine hundred seven thousand, six hundred twelve".