3871426050997 has 4 divisors (see below), whose sum is σ = 3873111480396. Its totient is φ = 3869740621600.

The previous prime is 3871426050983. The next prime is 3871426051033. The reversal of 3871426050997 is 7990506241783.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2238617432401 + 1632808618596 = 1496201^2 + 1277814^2 .

It is a cyclic number.

It is not a de Polignac number, because 3871426050997 - 2²³ = 3871417662389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871426050937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842711254 + ... + 842715847.

It is an arithmetic number, because the mean of its divisors is an integer number (968277870099).

It is a 1-persistent number, because it is pandigital, but 2⋅3871426050997 = 7742852101994 is not.

Almost surely, 2^{3871426050997} is an apocalyptic number.

It is an amenable number.

3871426050997 is a deficient number, since it is larger than the sum of its proper divisors (1685429399).

3871426050997 is a wasteful number, since it uses less digits than its factorization.

3871426050997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685429398.

The product of its (nonzero) digits is 22861440, while the sum is 61.

The spelling of 3871426050997 in words is "three trillion, eight hundred seventy-one billion, four hundred twenty-six million, fifty thousand, nine hundred ninety-seven".