6411006925991 has 4 divisors (see below), whose sum is σ = 6411023433984. Its totient is φ = 6410990418000.

The previous prime is 6411006925969. The next prime is 6411006925993. The reversal of 6411006925991 is 1995296001146.

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

It is a cyclic number.

It is not a de Polignac number, because 6411006925991 - 2⁶ = 6411006925927 is a prime.

It is a super-2 number, since 2×6411006925991² (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 (6411006925993) 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, 7657070 + ... + 8452971.

It is an arithmetic number, because the mean of its divisors is an integer number (1602755858496).

Almost surely, 2^{6411006925991} is an apocalyptic number.

6411006925991 is a deficient number, since it is larger than the sum of its proper divisors (16507993).

6411006925991 is a wasteful number, since it uses less digits than its factorization.

6411006925991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16507992.

The product of its (nonzero) digits is 1049760, while the sum is 53.

The spelling of 6411006925991 in words is "six trillion, four hundred eleven billion, six million, nine hundred twenty-five thousand, nine hundred ninety-one".