57273318648 has 1280 divisors, whose sum is σ = 229494988800. Its totient is φ = 12899450880.

The previous prime is 57273318607. The next prime is 57273318659. The reversal of 57273318648 is 84681337275.

It is a happy number.

57273318648 is a `hidden beast` number, since 57 + 273 + 318 + 6 + 4 + 8 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

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

Its product of digits (6773760) is a multiple of the sum of its prime divisors (189).

It is a junction number, because it is equal to n+sod(n) for n = 57273318594 and 57273318603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 590446536 + ... + 590446632.

It is an arithmetic number, because the mean of its divisors is an integer number (179292960).

Almost surely, 2^57273318648 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 57273318648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114747494400).

57273318648 is an abundant number, since it is smaller than the sum of its proper divisors (172221670152).

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

57273318648 is a wasteful number, since it uses less digits than its factorization.

57273318648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 189 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The spelling of 57273318648 in words is "fifty-seven billion, two hundred seventy-three million, three hundred eighteen thousand, six hundred forty-eight".