53678211840 has 288 divisors, whose sum is σ = 207801216000. Its totient is φ = 13012807680.

The previous prime is 53678211833. The next prime is 53678211947. The reversal of 53678211840 is 4811287635.

53678211840 is a `hidden beast` number, since 536 + 78 + 2 + 1 + 1 + 8 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 309561 + ... + 450759.

It is an arithmetic number, because the mean of its divisors is an integer number (721532000).

Almost surely, 2^53678211840 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 53678211840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103900608000).

53678211840 is an abundant number, since it is smaller than the sum of its proper divisors (154123004160).

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

53678211840 is a wasteful number, since it uses less digits than its factorization.

53678211840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141240 (or 141220 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 53678211840 in words is "fifty-three billion, six hundred seventy-eight million, two hundred eleven thousand, eight hundred forty".