71914218432 has 56 divisors (see below), whose sum is σ = 217454902656. Its totient is φ = 20546919168.

The previous prime is 71914218421. The next prime is 71914218437. The reversal of 71914218432 is 23481241917.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71914218437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26752458 + ... + 26755145.

Almost surely, 2^71914218432 is an apocalyptic number.

It is an amenable number.

71914218432 is an abundant number, since it is smaller than the sum of its proper divisors (145540684224).

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

71914218432 is a wasteful number, since it uses less digits than its factorization.

71914218432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53507625 (or 53507615 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The spelling of 71914218432 in words is "seventy-one billion, nine hundred fourteen million, two hundred eighteen thousand, four hundred thirty-two".