11758802985 has 48 divisors (see below), whose sum is σ = 21282056640. Its totient is φ = 5998446720.

The previous prime is 11758802983. The next prime is 11758802987. The reversal of 11758802985 is 58920885711.

It is an interprime number because it is at equal distance from previous prime (11758802983) and next prime (11758802987).

It is not a de Polignac number, because 11758802985 - 2¹ = 11758802983 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11758802983) 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, 97530 + ... + 181740.

It is an arithmetic number, because the mean of its divisors is an integer number (443376180).

Almost surely, 2^11758802985 is an apocalyptic number.

11758802985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11758802985 is a deficient number, since it is larger than the sum of its proper divisors (9523253655).

11758802985 is a wasteful number, since it uses less digits than its factorization.

11758802985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84358 (or 84355 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 54.

The spelling of 11758802985 in words is "eleven billion, seven hundred fifty-eight million, eight hundred two thousand, nine hundred eighty-five".