195031531536 has 20 divisors (see below), whose sum is σ = 503831456592. Its totient is φ = 65010510496.

The previous prime is 195031531511. The next prime is 195031531573. The reversal of 195031531536 is 635135130591.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2031578406 + ... + 2031578501.

Almost surely, 2^195031531536 is an apocalyptic number.

195031531536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

195031531536 is an abundant number, since it is smaller than the sum of its proper divisors (308799925056).

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

195031531536 is a wasteful number, since it uses less digits than its factorization.

195031531536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4063156918 (or 4063156912 counting only the distinct ones).

The product of its (nonzero) digits is 182250, while the sum is 42.

The spelling of 195031531536 in words is "one hundred ninety-five billion, thirty-one million, five hundred thirty-one thousand, five hundred thirty-six".