3840055372738 has 32 divisors (see below), whose sum is σ = 6221668143600. Its totient is φ = 1767050781696.

The previous prime is 3840055372607. The next prime is 3840055372739. The reversal of 3840055372738 is 8372735500483.

It can be written as a sum of positive squares in 8 ways, for example, as 1446205871889 + 2393849500849 = 1202583^2 + 1547207^2 .

It is a super-2 number, since 2×3840055372738² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3840055372739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24935158 + ... + 25088686.

Almost surely, 2^{3840055372738} is an apocalyptic number.

3840055372738 is a deficient number, since it is larger than the sum of its proper divisors (2381612770862).

3840055372738 is a wasteful number, since it uses less digits than its factorization.

3840055372738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156406.

The product of its (nonzero) digits is 16934400, while the sum is 55.

The spelling of 3840055372738 in words is "three trillion, eight hundred forty billion, fifty-five million, three hundred seventy-two thousand, seven hundred thirty-eight".