383840770128554 has 16 divisors (see below), whose sum is σ = 576056304336456. Its totient is φ = 191822007936000.

The previous prime is 383840770128533. The next prime is 383840770128611. The reversal of 383840770128554 is 455821077048383.

It can be written as a sum of positive squares in 4 ways, for example, as 96011052981529 + 287829717147025 = 9798523^2 + 16965545^2 .

It is a super-2 number, since 2×383840770128554² (a number of 30 digits) contains 22 as substring.

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, 129710654 + ... + 132636854.

Almost surely, 2^{383840770128554} is an apocalyptic number.

383840770128554 is a deficient number, since it is larger than the sum of its proper divisors (192215534207902).

383840770128554 is a wasteful number, since it uses less digits than its factorization.

383840770128554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959801.

The product of its (nonzero) digits is 180633600, while the sum is 65.

The spelling of 383840770128554 in words is "three hundred eighty-three trillion, eight hundred forty billion, seven hundred seventy million, one hundred twenty-eight thousand, five hundred fifty-four".