195851735040 has 416 divisors, whose sum is σ = 684301040640. Its totient is φ = 47535095808.

The previous prime is 195851735017. The next prime is 195851735063. The reversal of 195851735040 is 40537158591.

It is an interprime number because it is at equal distance from previous prime (195851735017) and next prime (195851735063).

It is a tau number, because it is divible by the number of its divisors (416).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58304881 + ... + 58308239.

Almost surely, 2^195851735040 is an apocalyptic number.

195851735040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 195851735040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (342150520320).

195851735040 is an abundant number, since it is smaller than the sum of its proper divisors (488449305600).

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

195851735040 is a wasteful number, since it uses less digits than its factorization.

195851735040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3477 (or 3455 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 48.

The spelling of 195851735040 in words is "one hundred ninety-five billion, eight hundred fifty-one million, seven hundred thirty-five thousand, forty".