6215811601923 has 24 divisors (see below), whose sum is σ = 11193842539776. Its totient is φ = 3228993039600.

The previous prime is 6215811601921. The next prime is 6215811601927. The reversal of 6215811601923 is 3291061185126.

It is a happy number.

6215811601923 is a `hidden beast` number, since 6 + 2 + 1 + 5 + 8 + 11 + 601 + 9 + 23 = 666.

It is not a de Polignac number, because 6215811601923 - 2¹ = 6215811601921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6215811601921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4484711863 + ... + 4484713248.

It is an arithmetic number, because the mean of its divisors is an integer number (466410105824).

Almost surely, 2^{6215811601923} is an apocalyptic number.

6215811601923 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

6215811601923 is a deficient number, since it is larger than the sum of its proper divisors (4978030937853).

6215811601923 is a wasteful number, since it uses less digits than its factorization.

6215811601923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8969425135 (or 8969425132 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 6215811601923 in words is "six trillion, two hundred fifteen billion, eight hundred eleven million, six hundred one thousand, nine hundred twenty-three".