23940155477871 has 36 divisors (see below), whose sum is σ = 35159477553720. Its totient is φ = 15697091448000.

The previous prime is 23940155477851. The next prime is 23940155477879. The reversal of 23940155477871 is 17877455104932.

23940155477871 is a `hidden beast` number, since 2 + 3 + 9 + 4 + 0 + 1 + 5 + 547 + 7 + 87 + 1 = 666.

It is not a de Polignac number, because 23940155477871 - 2⁷ = 23940155477743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23940155477799 and 23940155477808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23940155477879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 505693720 + ... + 505741058.

It is an arithmetic number, because the mean of its divisors is an integer number (976652154270).

Almost surely, 2^{23940155477871} is an apocalyptic number.

23940155477871 is a deficient number, since it is larger than the sum of its proper divisors (11219322075849).

23940155477871 is a wasteful number, since it uses less digits than its factorization.

23940155477871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62568 (or 62504 counting only the distinct ones).

The product of its (nonzero) digits is 59270400, while the sum is 63.

The spelling of 23940155477871 in words is "twenty-three trillion, nine hundred forty billion, one hundred fifty-five million, four hundred seventy-seven thousand, eight hundred seventy-one".