3854890857340 has 48 divisors (see below), whose sum is σ = 8117654372352. Its totient is φ = 1537696835136.

The previous prime is 3854890857331. The next prime is 3854890857343. The reversal of 3854890857340 is 437580984583.

3854890857340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3854890857343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15311557 + ... + 15561283.

It is an arithmetic number, because the mean of its divisors is an integer number (169117799424).

Almost surely, 2^{3854890857340} is an apocalyptic number.

It is an amenable number.

3854890857340 is an abundant number, since it is smaller than the sum of its proper divisors (4262763515012).

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

3854890857340 is a wasteful number, since it uses less digits than its factorization.

3854890857340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251866 (or 251864 counting only the distinct ones).

The product of its (nonzero) digits is 116121600, while the sum is 64.

The spelling of 3854890857340 in words is "three trillion, eight hundred fifty-four billion, eight hundred ninety million, eight hundred fifty-seven thousand, three hundred forty".