3851190378025 has 9 divisors (see below), whose sum is σ = 4775488235941. Its totient is φ = 3080944452640.

The previous prime is 3851190378011. The next prime is 3851190378043. The reversal of 3851190378025 is 5208730911583.

The square root of 3851190378025 is 1962445.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2075986969 + 3849114391056 = 45563^2 + 1961916^2 .

It is not a de Polignac number, because 3851190378025 - 2³¹ = 3849042894377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9615981 + ... + 10008469.

Almost surely, 2^{3851190378025} is an apocalyptic number.

3851190378025 is the 1962445-th square number.

3851190378025 is the 981223-rd centered octagonal number.

It is an amenable number.

3851190378025 is a deficient number, since it is larger than the sum of its proper divisors (924297857916).

3851190378025 is an frugal number, since it uses more digits than its factorization.

3851190378025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784988 (or 392494 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 52.

The spelling of 3851190378025 in words is "three trillion, eight hundred fifty-one billion, one hundred ninety million, three hundred seventy-eight thousand, twenty-five".