87451598169009 has 24 divisors (see below), whose sum is σ = 128399037179712. Its totient is φ = 57341174663520.

The previous prime is 87451598168947. The next prime is 87451598169011. The reversal of 87451598169009 is 90096189515478.

87451598169009 is a `hidden beast` number, since 8 + 7 + 4 + 515 + 9 + 8 + 16 + 90 + 0 + 9 = 666.

It is not a de Polignac number, because 87451598169009 - 2¹² = 87451598164913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87451598169059) 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, 1884804 + ... + 13358730.

It is an arithmetic number, because the mean of its divisors is an integer number (5349959882488).

Almost surely, 2^{87451598169009} is an apocalyptic number.

It is an amenable number.

87451598169009 is a deficient number, since it is larger than the sum of its proper divisors (40947439010703).

87451598169009 is a wasteful number, since it uses less digits than its factorization.

87451598169009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11487877 (or 11487874 counting only the distinct ones).

The product of its (nonzero) digits is 195955200, while the sum is 72.

The spelling of 87451598169009 in words is "eighty-seven trillion, four hundred fifty-one billion, five hundred ninety-eight million, one hundred sixty-nine thousand, nine".