53861239111680 has 6720 divisors, whose sum is σ = 280720175758848. Its totient is φ = 9539860561920.

The previous prime is 53861239111657. The next prime is 53861239111717. The reversal of 53861239111680 is 8611193216835.

53861239111680 is a `hidden beast` number, since 5 + 3 + 8 + 61 + 2 + 391 + 116 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (6720).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 447 ways as a sum of consecutive naturals, for example, 1016249794534 + ... + 1016249794586.

Almost surely, 2^{53861239111680} 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 53861239111680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140360087879424).

53861239111680 is an abundant number, since it is smaller than the sum of its proper divisors (226858936647168).

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

53861239111680 is a wasteful number, since it uses less digits than its factorization.

53861239111680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The spelling of 53861239111680 in words is "fifty-three trillion, eight hundred sixty-one billion, two hundred thirty-nine million, one hundred eleven thousand, six hundred eighty".