4021612487 has 4 divisors (see below), whose sum is σ = 4021745640. Its totient is φ = 4021479336.

The previous prime is 4021612411. The next prime is 4021612499. The reversal of 4021612487 is 7842161204.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4021612487 - 2¹⁰ = 4021611463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021612687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2888 + ... + 89730.

It is an arithmetic number, because the mean of its divisors is an integer number (1005436410).

Almost surely, 2^4021612487 is an apocalyptic number.

4021612487 is a deficient number, since it is larger than the sum of its proper divisors (133153).

4021612487 is an equidigital number, since it uses as much as digits as its factorization.

4021612487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133152.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 4021612487 is about 63416.1847401750. The cubic root of 4021612487 is about 1590.2548919580.

The spelling of 4021612487 in words is "four billion, twenty-one million, six hundred twelve thousand, four hundred eighty-seven".