11785996515 has 8 divisors (see below), whose sum is σ = 18857594448. Its totient is φ = 6285864800.

The previous prime is 11785996483. The next prime is 11785996561. The reversal of 11785996515 is 51569958711.

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

It is not a de Polignac number, because 11785996515 - 2⁵ = 11785996483 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392866536 + ... + 392866565.

It is an arithmetic number, because the mean of its divisors is an integer number (2357199306).

Almost surely, 2^11785996515 is an apocalyptic number.

11785996515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11785996515 is a deficient number, since it is larger than the sum of its proper divisors (7071597933).

11785996515 is an equidigital number, since it uses as much as digits as its factorization.

11785996515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785733109.

The product of its digits is 3402000, while the sum is 57.

The spelling of 11785996515 in words is "eleven billion, seven hundred eighty-five million, nine hundred ninety-six thousand, five hundred fifteen".