102615894887 has 48 divisors (see below), whose sum is σ = 127130018400. Its totient is φ = 82241280000.

The previous prime is 102615894883. The next prime is 102615894893. The reversal of 102615894887 is 788498516201.

It is not a de Polignac number, because 102615894887 - 2² = 102615894883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102615894883) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3463637 + ... + 3493137.

It is an arithmetic number, because the mean of its divisors is an integer number (2648542050).

Almost surely, 2^102615894887 is an apocalyptic number.

102615894887 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

102615894887 is a deficient number, since it is larger than the sum of its proper divisors (24514123513).

102615894887 is a wasteful number, since it uses less digits than its factorization.

102615894887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29648 (or 29637 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 59.

The spelling of 102615894887 in words is "one hundred two billion, six hundred fifteen million, eight hundred ninety-four thousand, eight hundred eighty-seven".