537544157400 has 144 divisors (see below), whose sum is σ = 1808269866000. Its totient is φ = 143105514240.

The previous prime is 537544157303. The next prime is 537544157413. The reversal of 537544157400 is 4751445735.

537544157400 is a `hidden beast` number, since 5 + 3 + 75 + 4 + 4 + 1 + 574 + 0 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 828922 + ... + 1327478.

It is an arithmetic number, because the mean of its divisors is an integer number (12557429625).

Almost surely, 2^537544157400 is an apocalyptic number.

537544157400 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 537544157400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (904134933000).

537544157400 is an abundant number, since it is smaller than the sum of its proper divisors (1270725708600).

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

537544157400 is a wasteful number, since it uses less digits than its factorization.

537544157400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499178 (or 499166 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 45.

The spelling of 537544157400 in words is "five hundred thirty-seven billion, five hundred forty-four million, one hundred fifty-seven thousand, four hundred".