4473864781 has 4 divisors (see below), whose sum is σ = 4577908192. Its totient is φ = 4369821372.

The previous prime is 4473864763. The next prime is 4473864793. The reversal of 4473864781 is 1874683744.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4473864781 - 2¹³ = 4473856589 is a prime.

It is a super-2 number, since 2×4473864781² = 40030932157344355922, 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 (4473864581) 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, 52021641 + ... + 52021726.

It is an arithmetic number, because the mean of its divisors is an integer number (1144477048).

Almost surely, 2^4473864781 is an apocalyptic number.

It is an amenable number.

4473864781 is a deficient number, since it is larger than the sum of its proper divisors (104043411).

4473864781 is a wasteful number, since it uses less digits than its factorization.

4473864781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104043410.

The product of its digits is 3612672, while the sum is 52.

The square root of 4473864781 is about 66886.9552379236. The cubic root of 4473864781 is about 1647.7612467390.

The spelling of 4473864781 in words is "four billion, four hundred seventy-three million, eight hundred sixty-four thousand, seven hundred eighty-one".