3867720896957 has 8 divisors (see below), whose sum is σ = 3891317092992. Its totient is φ = 3844129894000.

The previous prime is 3867720896953. The next prime is 3867720896969. The reversal of 3867720896957 is 7596980277683.

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 3867720896957 - 2² = 3867720896953 is a prime.

It is a super-2 number, since 2×3867720896957² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3867720896951) 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, 201107 + ... + 2788527.

It is an arithmetic number, because the mean of its divisors is an integer number (486414636624).

Almost surely, 2^{3867720896957} is an apocalyptic number.

It is an amenable number.

3867720896957 is a deficient number, since it is larger than the sum of its proper divisors (23596196035).

3867720896957 is a wasteful number, since it uses less digits than its factorization.

3867720896957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596539.

The product of its (nonzero) digits is 1920360960, while the sum is 77.

The spelling of 3867720896957 in words is "three trillion, eight hundred sixty-seven billion, seven hundred twenty million, eight hundred ninety-six thousand, nine hundred fifty-seven".