3951798136 has 64 divisors (see below), whose sum is σ = 8847871200. Its totient is φ = 1630886400.

The previous prime is 3951798113. The next prime is 3951798143. The reversal of 3951798136 is 6318971593.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 41470 + ... + 98098.

Almost surely, 2^3951798136 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 3951798136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4423935600).

3951798136 is an abundant number, since it is smaller than the sum of its proper divisors (4896073064).

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

3951798136 is a wasteful number, since it uses less digits than its factorization.

3951798136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56720 (or 56716 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 52.

The square root of 3951798136 is about 62863.3290241616. The cubic root of 3951798136 is about 1580.9989591499.

The spelling of 3951798136 in words is "three billion, nine hundred fifty-one million, seven hundred ninety-eight thousand, one hundred thirty-six".