6472003861 has 2 divisors, whose sum is σ = 6472003862. Its totient is φ = 6472003860.

The previous prime is 6472003859. The next prime is 6472003883. The reversal of 6472003861 is 1683002746.

6472003861 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3259268100 + 3212735761 = 57090^2 + 56681^2 .

It is a cyclic number.

It is not a de Polignac number, because 6472003861 - 2¹ = 6472003859 is a prime.

Together with 6472003859, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 6472003861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6472003961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3236001930 + 3236001931.

It is an arithmetic number, because the mean of its divisors is an integer number (3236001931).

Almost surely, 2^6472003861 is an apocalyptic number.

It is an amenable number.

6472003861 is a deficient number, since it is larger than the sum of its proper divisors (1).

6472003861 is an equidigital number, since it uses as much as digits as its factorization.

6472003861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 6472003861 is about 80448.7654411179. The cubic root of 6472003861 is about 1863.5723403089.

The spelling of 6472003861 in words is "six billion, four hundred seventy-two million, three thousand, eight hundred sixty-one".