3984050817457 has 4 divisors (see below), whose sum is σ = 4157270418240. Its totient is φ = 3810831216676.

The previous prime is 3984050817449. The next prime is 3984050817469. The reversal of 3984050817457 is 7547180504893.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3984050817457 - 2³ = 3984050817449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3984050817395 and 3984050817404.

It is not an unprimeable number, because it can be changed into a prime (3984050817557) 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, 86609800357 + ... + 86609800402.

It is an arithmetic number, because the mean of its divisors is an integer number (1039317604560).

Almost surely, 2^{3984050817457} is an apocalyptic number.

It is an amenable number.

3984050817457 is a deficient number, since it is larger than the sum of its proper divisors (173219600783).

3984050817457 is a wasteful number, since it uses less digits than its factorization.

3984050817457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173219600782.

The product of its (nonzero) digits is 33868800, while the sum is 61.

The spelling of 3984050817457 in words is "three trillion, nine hundred eighty-four billion, fifty million, eight hundred seventeen thousand, four hundred fifty-seven".