88412786505 has 24 divisors (see below), whose sum is σ = 153410729472. Its totient is φ = 47103670944.

The previous prime is 88412786443. The next prime is 88412786509. The reversal of 88412786505 is 50568721488.

88412786505 is a `hidden beast` number, since 8 + 8 + 4 + 127 + 8 + 6 + 505 = 666.

It is not a de Polignac number, because 88412786505 - 2¹⁶ = 88412720969 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (88412786509) 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, 994729 + ... + 1079958.

It is an arithmetic number, because the mean of its divisors is an integer number (6392113728).

Almost surely, 2^88412786505 is an apocalyptic number.

It is an amenable number.

88412786505 is a deficient number, since it is larger than the sum of its proper divisors (64997942967).

88412786505 is a wasteful number, since it uses less digits than its factorization.

88412786505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075645 (or 2075642 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 54.

The spelling of 88412786505 in words is "eighty-eight billion, four hundred twelve million, seven hundred eighty-six thousand, five hundred five".