3788388655 has 16 divisors (see below), whose sum is σ = 4627570464. Its totient is φ = 2976721920.

The previous prime is 3788388649. The next prime is 3788388661. The reversal of 3788388655 is 5568838873.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3788388649) and next prime (3788388661).

It is not a de Polignac number, because 3788388655 - 2²¹ = 3786291503 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3788388593 and 3788388602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66432 + ... + 109498.

It is an arithmetic number, because the mean of its divisors is an integer number (289223154).

Almost surely, 2^3788388655 is an apocalyptic number.

3788388655 is a deficient number, since it is larger than the sum of its proper divisors (839181809).

3788388655 is a wasteful number, since it uses less digits than its factorization.

3788388655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43386.

The product of its digits is 38707200, while the sum is 61.

The square root of 3788388655 is about 61549.8875303603. The cubic root of 3788388655 is about 1558.8997083235.

The spelling of 3788388655 in words is "three billion, seven hundred eighty-eight million, three hundred eighty-eight thousand, six hundred fifty-five".