3817681542 has 24 divisors (see below), whose sum is σ = 8631280944. Its totient is φ = 1217231664.

The previous prime is 3817681541. The next prime is 3817681547. The reversal of 3817681542 is 2451867183.

3817681542 is a `hidden beast` number, since 38 + 1 + 76 + 8 + 1 + 542 = 666.

It is a super-2 number, since 2×3817681542² = 29149384712254995528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3817681541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4610313 + ... + 4611140.

It is an arithmetic number, because the mean of its divisors is an integer number (359636706).

Almost surely, 2^3817681542 is an apocalyptic number.

3817681542 is an abundant number, since it is smaller than the sum of its proper divisors (4813599402).

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

3817681542 is a wasteful number, since it uses less digits than its factorization.

3817681542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9221484 (or 9221481 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 3817681542 is about 61787.3898299645. The cubic root of 3817681542 is about 1562.9073469956.

The spelling of 3817681542 in words is "three billion, eight hundred seventeen million, six hundred eighty-one thousand, five hundred forty-two".