201071591934 has 48 divisors (see below), whose sum is σ = 429975082512. Its totient is φ = 62468507904.

The previous prime is 201071591909. The next prime is 201071591939. The reversal of 201071591934 is 439195170102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201071591939) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 989212 + ... + 1175024.

It is an arithmetic number, because the mean of its divisors is an integer number (8957814219).

Almost surely, 2^201071591934 is an apocalyptic number.

201071591934 is an abundant number, since it is smaller than the sum of its proper divisors (228903490578).

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

201071591934 is a wasteful number, since it uses less digits than its factorization.

201071591934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186041 (or 185938 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 42.

The spelling of 201071591934 in words is "two hundred one billion, seventy-one million, five hundred ninety-one thousand, nine hundred thirty-four".