102471604787 has 4 divisors (see below), whose sum is σ = 102472356936. Its totient is φ = 102470852640.

The previous prime is 102471604751. The next prime is 102471604801. The reversal of 102471604787 is 787406174201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 787406174201 = 17027 ⋅46244563.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102471604787 is a prime.

It is a super-4 number, since 4×102471604787⁴ (a number of 45 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102471604727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108038 + ... + 465419.

It is an arithmetic number, because the mean of its divisors is an integer number (25618089234).

Almost surely, 2^102471604787 is an apocalyptic number.

102471604787 is a deficient number, since it is larger than the sum of its proper divisors (752149).

102471604787 is an equidigital number, since it uses as much as digits as its factorization.

102471604787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752148.

The product of its (nonzero) digits is 526848, while the sum is 47.

Adding to 102471604787 its reverse (787406174201), we get a palindrome (889877778988).

The spelling of 102471604787 in words is "one hundred two billion, four hundred seventy-one million, six hundred four thousand, seven hundred eighty-seven".