2003866974549 has 48 divisors (see below), whose sum is σ = 3325045701120. Its totient is φ = 1150113906720.

The previous prime is 2003866974547. The next prime is 2003866974583. The reversal of 2003866974549 is 9454796683002.

2003866974549 is a `hidden beast` number, since 2 + 0 + 0 + 3 + 86 + 6 + 9 + 7 + 4 + 549 = 666.

It is not a de Polignac number, because 2003866974549 - 2¹ = 2003866974547 is a prime.

It is a super-2 number, since 2×2003866974549² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003866974547) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4848192 + ... + 5245254.

It is an arithmetic number, because the mean of its divisors is an integer number (69271785440).

Almost surely, 2^{2003866974549} is an apocalyptic number.

It is an amenable number.

2003866974549 is a deficient number, since it is larger than the sum of its proper divisors (1321178726571).

2003866974549 is a wasteful number, since it uses less digits than its factorization.

2003866974549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399782 (or 399779 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 63.

The spelling of 2003866974549 in words is "two trillion, three billion, eight hundred sixty-six million, nine hundred seventy-four thousand, five hundred forty-nine".