3857781043 has 8 divisors (see below), whose sum is σ = 3865335696. Its totient is φ = 3850236000.

The previous prime is 3857781041. The next prime is 3857781091. The reversal of 3857781043 is 3401877583.

3857781043 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3857781043 - 2¹ = 3857781041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3857780984 and 3857781002.

It is not an unprimeable number, because it can be changed into a prime (3857781041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2028393 + ... + 2030293.

It is an arithmetic number, because the mean of its divisors is an integer number (483166962).

Almost surely, 2^3857781043 is an apocalyptic number.

3857781043 is a deficient number, since it is larger than the sum of its proper divisors (7554653).

3857781043 is a wasteful number, since it uses less digits than its factorization.

3857781043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4805.

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 3857781043 is about 62111.0380125787. The cubic root of 3857781043 is about 1568.3603641821.

The spelling of 3857781043 in words is "three billion, eight hundred fifty-seven million, seven hundred eighty-one thousand, forty-three".