4017985499 has 24 divisors (see below), whose sum is σ = 4647176640. Its totient is φ = 3435696000.

The previous prime is 4017985493. The next prime is 4017985501. The reversal of 4017985499 is 9945897104.

It is not a de Polignac number, because 4017985499 - 2¹² = 4017981403 is a prime.

It is a super-2 number, since 2×4017985499² = 32288414940348558002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4017985493) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12138764 + ... + 12139094.

It is an arithmetic number, because the mean of its divisors is an integer number (193632360).

Almost surely, 2^4017985499 is an apocalyptic number.

4017985499 is a deficient number, since it is larger than the sum of its proper divisors (629191141).

4017985499 is a wasteful number, since it uses less digits than its factorization.

4017985499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843 (or 602 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 56.

The square root of 4017985499 is about 63387.5815834616. The cubic root of 4017985499 is about 1589.7766782853.

The spelling of 4017985499 in words is "four billion, seventeen million, nine hundred eighty-five thousand, four hundred ninety-nine".