9771407422418 has 16 divisors (see below), whose sum is σ = 14808697191960. Its totient is φ = 4835178302976.

The previous prime is 9771407422369. The next prime is 9771407422433. The reversal of 9771407422418 is 8142247041779.

It can be written as a sum of positive squares in 4 ways, for example, as 8130156903649 + 1641250518769 = 2851343^2 + 1281113^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5274848 + ... + 6882356.

Almost surely, 2^{9771407422418} is an apocalyptic number.

9771407422418 is a deficient number, since it is larger than the sum of its proper divisors (5037289769542).

9771407422418 is a wasteful number, since it uses less digits than its factorization.

9771407422418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638941.

The product of its (nonzero) digits is 6322176, while the sum is 56.

The spelling of 9771407422418 in words is "nine trillion, seven hundred seventy-one billion, four hundred seven million, four hundred twenty-two thousand, four hundred eighteen".