38479670861 has 2 divisors, whose sum is σ = 38479670862. Its totient is φ = 38479670860.

The previous prime is 38479670851. The next prime is 38479670923. The reversal of 38479670861 is 16807697483.

38479670861 is digitally balanced in base 2, 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., 35430532900 + 3049137961 = 188230^2 + 55219^2 .

It is a cyclic number.

It is not a de Polignac number, because 38479670861 - 2⁶ = 38479670797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38479670861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38479670851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19239835430 + 19239835431.

It is an arithmetic number, because the mean of its divisors is an integer number (19239835431).

Almost surely, 2^38479670861 is an apocalyptic number.

It is an amenable number.

38479670861 is a deficient number, since it is larger than the sum of its proper divisors (1).

38479670861 is an equidigital number, since it uses as much as digits as its factorization.

38479670861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12192768, while the sum is 59.

The spelling of 38479670861 in words is "thirty-eight billion, four hundred seventy-nine million, six hundred seventy thousand, eight hundred sixty-one".