71533462540512 has 96 divisors (see below), whose sum is σ = 214669866297600. Its totient is φ = 20431515138048.

The previous prime is 71533462540511. The next prime is 71533462540531. The reversal of 71533462540512 is 21504526433517.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71533462540511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15154462 + ... + 19306077.

It is an arithmetic number, because the mean of its divisors is an integer number (2236144440600).

Almost surely, 2^{71533462540512} is an apocalyptic number.

It is an amenable number.

71533462540512 is an abundant number, since it is smaller than the sum of its proper divisors (143136403757088).

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

71533462540512 is a wasteful number, since it uses less digits than its factorization.

71533462540512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34463648 (or 34463640 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 48.

The spelling of 71533462540512 in words is "seventy-one trillion, five hundred thirty-three billion, four hundred sixty-two million, five hundred forty thousand, five hundred twelve".