3661838854147 has 2 divisors, whose sum is σ = 3661838854148. Its totient is φ = 3661838854146.

The previous prime is 3661838854133. The next prime is 3661838854181. The reversal of 3661838854147 is 7414588381663.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3661838854147 - 2¹⁵ = 3661838821379 is a prime.

It is a super-2 number, since 2×3661838854147² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3661838854187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1830919427073 + 1830919427074.

It is an arithmetic number, because the mean of its divisors is an integer number (1830919427074).

Almost surely, 2^{3661838854147} is an apocalyptic number.

3661838854147 is a deficient number, since it is larger than the sum of its proper divisors (1).

3661838854147 is an equidigital number, since it uses as much as digits as its factorization.

3661838854147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92897280, while the sum is 64.

The spelling of 3661838854147 in words is "three trillion, six hundred sixty-one billion, eight hundred thirty-eight million, eight hundred fifty-four thousand, one hundred forty-seven".