3891201012 has 48 divisors (see below), whose sum is σ = 10092667200. Its totient is φ = 1296505440.

The previous prime is 3891201001. The next prime is 3891201029. The reversal of 3891201012 is 2101021983.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent 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, 298062 + ... + 310842.

It is an arithmetic number, because the mean of its divisors is an integer number (210263900).

Almost surely, 2^3891201012 is an apocalyptic number.

It is an amenable number.

3891201012 is an abundant number, since it is smaller than the sum of its proper divisors (6201466188).

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

3891201012 is a wasteful number, since it uses less digits than its factorization.

3891201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15613 (or 15605 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 3891201012 is about 62379.4919184182. The cubic root of 3891201012 is about 1572.8762523412.

Adding to 3891201012 its reverse (2101021983), we get a palindrome (5992222995).

The spelling of 3891201012 in words is "three billion, eight hundred ninety-one million, two hundred one thousand, twelve".