3918361625 has 16 divisors (see below), whose sum is σ = 4897820928. Its totient is φ = 3129750000.

The previous prime is 3918361613. The next prime is 3918361633. The reversal of 3918361625 is 5261638193.

3918361625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3918361625 - 2¹⁰ = 3918360601 is a prime.

It is a Duffinian 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, 56000 + ... + 104750.

It is an arithmetic number, because the mean of its divisors is an integer number (306113808).

Almost surely, 2^3918361625 is an apocalyptic number.

It is an amenable number.

3918361625 is a deficient number, since it is larger than the sum of its proper divisors (979459303).

3918361625 is an equidigital number, since it uses as much as digits as its factorization.

3918361625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49409 (or 49399 counting only the distinct ones).

The product of its digits is 233280, while the sum is 44.

The square root of 3918361625 is about 62596.8180101832. The cubic root of 3918361625 is about 1576.5273333946.

The spelling of 3918361625 in words is "three billion, nine hundred eighteen million, three hundred sixty-one thousand, six hundred twenty-five".