3957919086 has 64 divisors (see below), whose sum is σ = 8753412096. Its totient is φ = 1183087200.

The previous prime is 3957919081. The next prime is 3957919099. The reversal of 3957919086 is 6809197593.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3957919081) 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 31 ways as a sum of consecutive naturals, for example, 1856241 + ... + 1858371.

It is an arithmetic number, because the mean of its divisors is an integer number (136772064).

Almost surely, 2^3957919086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3957919086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4376706048).

3957919086 is an abundant number, since it is smaller than the sum of its proper divisors (4795493010).

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

3957919086 is a wasteful number, since it uses less digits than its factorization.

3957919086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2517.

The product of its (nonzero) digits is 3674160, while the sum is 57.

The square root of 3957919086 is about 62911.9947704728. The cubic root of 3957919086 is about 1581.8148091492.

The spelling of 3957919086 in words is "three billion, nine hundred fifty-seven million, nine hundred nineteen thousand, eighty-six".