8423920712511 has 24 divisors (see below), whose sum is σ = 12173038699536. Its totient is φ = 5613569245440.

The previous prime is 8423920712483. The next prime is 8423920712567. The reversal of 8423920712511 is 1152170293248.

8423920712511 is a `hidden beast` number, since 8 + 4 + 2 + 392 + 0 + 7 + 1 + 251 + 1 = 666.

It is not a de Polignac number, because 8423920712511 - 2¹⁹ = 8423920188223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8423920712591) 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, 269523961 + ... + 269555213.

It is an arithmetic number, because the mean of its divisors is an integer number (507209945814).

Almost surely, 2^{8423920712511} is an apocalyptic number.

8423920712511 is a deficient number, since it is larger than the sum of its proper divisors (3749117987025).

8423920712511 is a wasteful number, since it uses less digits than its factorization.

8423920712511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42983 (or 42980 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 8423920712511 in words is "eight trillion, four hundred twenty-three billion, nine hundred twenty million, seven hundred twelve thousand, five hundred eleven".