57621240000 has 280 divisors, whose sum is σ = 211680927920. Its totient is φ = 15365376000.

The previous prime is 57621239999. The next prime is 57621240011. The reversal of 57621240000 is 4212675.

57621240000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1053324 + ... + 1106676.

It is an arithmetic number, because the mean of its divisors is an integer number (756003314).

Almost surely, 2^57621240000 is an apocalyptic number.

57621240000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57621240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105840463960).

57621240000 is an abundant number, since it is smaller than the sum of its proper divisors (154059687920).

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

57621240000 is an equidigital number, since it uses as much as digits as its factorization.

57621240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53394 (or 53363 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

Adding to 57621240000 its reverse (4212675), we get a palindrome (57625452675).

The spelling of 57621240000 in words is "fifty-seven billion, six hundred twenty-one million, two hundred forty thousand".