3957858379667 has 8 divisors (see below), whose sum is σ = 4087902458880. Its totient is φ = 3827962502280.

The previous prime is 3957858379639. The next prime is 3957858379679. The reversal of 3957858379667 is 7669738587593.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3957858379667 - 2²⁶ = 3957791270803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3957858079667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36996167 + ... + 37102992.

It is an arithmetic number, because the mean of its divisors is an integer number (510987807360).

Almost surely, 2^{3957858379667} is an apocalyptic number.

3957858379667 is a deficient number, since it is larger than the sum of its proper divisors (130044079213).

3957858379667 is a wasteful number, since it uses less digits than its factorization.

3957858379667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74100913.

The product of its digits is 14402707200, while the sum is 83.

The spelling of 3957858379667 in words is "three trillion, nine hundred fifty-seven billion, eight hundred fifty-eight million, three hundred seventy-nine thousand, six hundred sixty-seven".