6416063891957 has 4 divisors (see below), whose sum is σ = 6418476855840. Its totient is φ = 6413650928076.

The previous prime is 6416063891917. The next prime is 6416063891971. The reversal of 6416063891957 is 7591983606146.

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 6416063891957 - 2⁸ = 6416063891701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6416063891893 and 6416063891902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6416063891917) 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, 1206477953 + ... + 1206483270.

It is an arithmetic number, because the mean of its divisors is an integer number (1604619213960).

Almost surely, 2^{6416063891957} is an apocalyptic number.

It is an amenable number.

6416063891957 is a deficient number, since it is larger than the sum of its proper divisors (2412963883).

6416063891957 is a wasteful number, since it uses less digits than its factorization.

6416063891957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412963882.

The product of its (nonzero) digits is 58786560, while the sum is 65.

The spelling of 6416063891957 in words is "six trillion, four hundred sixteen billion, sixty-three million, eight hundred ninety-one thousand, nine hundred fifty-seven".