3918523956 has 24 divisors (see below), whose sum is σ = 9253384224. Its totient is φ = 1290437280.

The previous prime is 3918523943. The next prime is 3918523963. The reversal of 3918523956 is 6593258193.

It is a junction number, because it is equal to n+sod(n) for n = 3918523899 and 3918523908.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1966135 + ... + 1968126.

It is an arithmetic number, because the mean of its divisors is an integer number (385557676).

Almost surely, 2^3918523956 is an apocalyptic number.

It is an amenable number.

3918523956 is an abundant number, since it is smaller than the sum of its proper divisors (5334860268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3918523956 is a wasteful number, since it uses less digits than its factorization.

3918523956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3934351 (or 3934349 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 51.

The square root of 3918523956 is about 62598.1146361454. The cubic root of 3918523956 is about 1576.5491040349.

The spelling of 3918523956 in words is "three billion, nine hundred eighteen million, five hundred twenty-three thousand, nine hundred fifty-six".