201847354640 has 40 divisors (see below), whose sum is σ = 469314336960. Its totient is φ = 80735632256.

The previous prime is 201847354613. The next prime is 201847354673. The reversal of 201847354640 is 46453748102.

It is a happy number.

201847354640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 201847354591 and 201847354600.

It is an unprimeable number.

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, 3121517 + ... + 3185523.

It is an arithmetic number, because the mean of its divisors is an integer number (11732858424).

Almost surely, 2^201847354640 is an apocalyptic number.

201847354640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201847354640 is an abundant number, since it is smaller than the sum of its proper divisors (267466982320).

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

201847354640 is a wasteful number, since it uses less digits than its factorization.

201847354640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103439 (or 103433 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 201847354640 in words is "two hundred one billion, eight hundred forty-seven million, three hundred fifty-four thousand, six hundred forty".