3778915023 has 24 divisors (see below), whose sum is σ = 6224098608. Its totient is φ = 2188691712.

The previous prime is 3778914983. The next prime is 3778915027. The reversal of 3778915023 is 3205198773.

It is a happy number.

It is not a de Polignac number, because 3778915023 - 2⁸ = 3778914767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3778915023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3778915027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 947965 + ... + 951942.

It is an arithmetic number, because the mean of its divisors is an integer number (259337442).

Almost surely, 2^3778915023 is an apocalyptic number.

3778915023 is a deficient number, since it is larger than the sum of its proper divisors (2445183585).

3778915023 is a wasteful number, since it uses less digits than its factorization.

3778915023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1899943 (or 1899940 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 3778915023 is about 61472.8803863948. The cubic root of 3778915023 is about 1557.5991756406.

The spelling of 3778915023 in words is "three billion, seven hundred seventy-eight million, nine hundred fifteen thousand, twenty-three".