67540053400 has 96 divisors (see below), whose sum is σ = 163702558080. Its totient is φ = 25885440000.

The previous prime is 67540053391. The next prime is 67540053419. The reversal of 67540053400 is 435004576.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 572272 + ... + 680128.

It is an arithmetic number, because the mean of its divisors is an integer number (1705234980).

Almost surely, 2^67540053400 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 67540053400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81851279040).

67540053400 is an abundant number, since it is smaller than the sum of its proper divisors (96162504680).

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

67540053400 is a wasteful number, since it uses less digits than its factorization.

67540053400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108005 (or 107996 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 34.

Adding to 67540053400 its reverse (435004576), we get a palindrome (67975057976).

The spelling of 67540053400 in words is "sixty-seven billion, five hundred forty million, fifty-three thousand, four hundred".