537534013823640 has 96 divisors (see below), whose sum is σ = 1746989040026880. Its totient is φ = 143342116909056.

The previous prime is 537534013823621. The next prime is 537534013823657. The reversal of 537534013823640 is 46328310435735.

537534013823640 is a `hidden beast` number, since 5 + 3 + 7 + 534 + 0 + 1 + 38 + 2 + 36 + 40 = 666.

It is a super-2 number, since 2×537534013823640² (a number of 30 digits) contains 22 as substring.

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, 227311032 + ... + 229663608.

It is an arithmetic number, because the mean of its divisors is an integer number (18197802500280).

Almost surely, 2^{537534013823640} is an apocalyptic number.

It is an amenable number.

537534013823640 is an abundant number, since it is smaller than the sum of its proper divisors (1209455026203240).

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

537534013823640 is a wasteful number, since it uses less digits than its factorization.

537534013823640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2987281 (or 2987274 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 54.

The spelling of 537534013823640 in words is "five hundred thirty-seven trillion, five hundred thirty-four billion, thirteen million, eight hundred twenty-three thousand, six hundred forty".