540251140021400 has 48 divisors (see below), whose sum is σ = 1256085976185600. Its totient is φ = 216100098910080.

The previous prime is 540251140021399. The next prime is 540251140021421. The reversal of 540251140021400 is 4120041152045.

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 11 ways as a sum of consecutive naturals, for example, 142510889 + ... + 146252711.

It is an arithmetic number, because the mean of its divisors is an integer number (26168457837200).

Almost surely, 2^{540251140021400} is an apocalyptic number.

540251140021400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

540251140021400 is an abundant number, since it is smaller than the sum of its proper divisors (715834836164200).

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

540251140021400 is a wasteful number, since it uses less digits than its factorization.

540251140021400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4463748 (or 4463739 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 540251140021400 its reverse (4120041152045), we get a palindrome (544371181173445).

The spelling of 540251140021400 in words is "five hundred forty trillion, two hundred fifty-one billion, one hundred forty million, twenty-one thousand, four hundred".