102499717387 has 8 divisors (see below), whose sum is σ = 106039315872. Its totient is φ = 99009624000.

The previous prime is 102499717381. The next prime is 102499717417. The reversal of 102499717387 is 783717994201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102499717387 - 2¹⁹ = 102499193099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102499717381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12372063 + ... + 12380344.

It is an arithmetic number, because the mean of its divisors is an integer number (13254914484).

Almost surely, 2^102499717387 is an apocalyptic number.

102499717387 is a deficient number, since it is larger than the sum of its proper divisors (3539598485).

102499717387 is a wasteful number, since it uses less digits than its factorization.

102499717387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24752549.

The product of its (nonzero) digits is 5334336, while the sum is 58.

The spelling of 102499717387 in words is "one hundred two billion, four hundred ninety-nine million, seven hundred seventeen thousand, three hundred eighty-seven".