3651902879 has 4 divisors (see below), whose sum is σ = 3672079320. Its totient is φ = 3631726440.

The previous prime is 3651902873. The next prime is 3651902887. The reversal of 3651902879 is 9782091563.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9782091563 = 19249 ⋅508187.

It is a cyclic number.

It is not a de Polignac number, because 3651902879 - 2⁸ = 3651902623 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 (3651902873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10087949 + ... + 10088310.

It is an arithmetic number, because the mean of its divisors is an integer number (918019830).

Almost surely, 2^3651902879 is an apocalyptic number.

3651902879 is a deficient number, since it is larger than the sum of its proper divisors (20176441).

3651902879 is a wasteful number, since it uses less digits than its factorization.

3651902879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20176440.

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 3651902879 is about 60430.9761546179. The cubic root of 3651902879 is about 1539.9492420163.

The spelling of 3651902879 in words is "three billion, six hundred fifty-one million, nine hundred two thousand, eight hundred seventy-nine".