3967857535749 has 16 divisors (see below), whose sum is σ = 5522498357760. Its totient is φ = 2531145070080.

The previous prime is 3967857535739. The next prime is 3967857535751. The reversal of 3967857535749 is 9475357587693.

It is not a de Polignac number, because 3967857535749 - 2⁸ = 3967857535493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3967857535729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239683492 + ... + 239700045.

It is an arithmetic number, because the mean of its divisors is an integer number (345156147360).

Almost surely, 2^{3967857535749} is an apocalyptic number.

It is an amenable number.

3967857535749 is a deficient number, since it is larger than the sum of its proper divisors (1554640822011).

3967857535749 is a wasteful number, since it uses less digits than its factorization.

3967857535749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479383660.

The product of its digits is 6001128000, while the sum is 78.

The spelling of 3967857535749 in words is "three trillion, nine hundred sixty-seven billion, eight hundred fifty-seven million, five hundred thirty-five thousand, seven hundred forty-nine".