3895125631 has 4 divisors (see below), whose sum is σ = 3985709992. Its totient is φ = 3804541272.

The previous prime is 3895125623. The next prime is 3895125653. The reversal of 3895125631 is 1365215983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1365215983 = 787 ⋅1734709.

It is not a de Polignac number, because 3895125631 - 2³ = 3895125623 is a prime.

It is a super-2 number, since 2×3895125631² = 30344007362546296322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 90584317 = 3895125631 / (3 + 8 + 9 + 5 + 1 + 2 + 5 + 6 + 3 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3895125671) 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 3 ways as a sum of consecutive naturals, for example, 45292116 + ... + 45292201.

It is an arithmetic number, because the mean of its divisors is an integer number (996427498).

Almost surely, 2^3895125631 is an apocalyptic number.

3895125631 is a deficient number, since it is larger than the sum of its proper divisors (90584361).

3895125631 is an equidigital number, since it uses as much as digits as its factorization.

3895125631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90584360.

The product of its digits is 194400, while the sum is 43.

The square root of 3895125631 is about 62410.9415968066. The cubic root of 3895125631 is about 1573.4048694143.

The spelling of 3895125631 in words is "three billion, eight hundred ninety-five million, one hundred twenty-five thousand, six hundred thirty-one".