38611586477 has 2 divisors, whose sum is σ = 38611586478. Its totient is φ = 38611586476.

The previous prime is 38611586443. The next prime is 38611586557. The reversal of 38611586477 is 77468511683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26160151081 + 12451435396 = 161741^2 + 111586^2 .

It is a cyclic number.

It is not a de Polignac number, because 38611586477 - 2¹² = 38611582381 is a prime.

It is a super-2 number, since 2×38611586477² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38611586407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19305793238 + 19305793239.

It is an arithmetic number, because the mean of its divisors is an integer number (19305793239).

Almost surely, 2^38611586477 is an apocalyptic number.

It is an amenable number.

38611586477 is a deficient number, since it is larger than the sum of its proper divisors (1).

38611586477 is an equidigital number, since it uses as much as digits as its factorization.

38611586477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6773760, while the sum is 56.

The spelling of 38611586477 in words is "thirty-eight billion, six hundred eleven million, five hundred eighty-six thousand, four hundred seventy-seven".