3951351612 has 96 divisors (see below), whose sum is σ = 11240631360. Its totient is φ = 1192838400.

The previous prime is 3951351577. The next prime is 3951351637. The reversal of 3951351612 is 2161531593.

It is a happy number.

3951351612 is a `hidden beast` number, since 3 + 9 + 5 + 1 + 35 + 1 + 612 = 666.

It is a super-2 number, since 2×3951351612² = 31226359123309997088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47862 + ... + 100962.

It is an arithmetic number, because the mean of its divisors is an integer number (117089910).

Almost surely, 2^3951351612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3951351612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5620315680).

3951351612 is an abundant number, since it is smaller than the sum of its proper divisors (7289279748).

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

3951351612 is a wasteful number, since it uses less digits than its factorization.

3951351612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53180 (or 53172 counting only the distinct ones).

The product of its digits is 24300, while the sum is 36.

The square root of 3951351612 is about 62859.7773779068. Note that the first 3 decimals coincide. The cubic root of 3951351612 is about 1580.9394098388.

It can be divided in two parts, 39513 and 51612, that added together give a cube (91125 = 45³).

The spelling of 3951351612 in words is "three billion, nine hundred fifty-one million, three hundred fifty-one thousand, six hundred twelve".