11785690458 has 32 divisors (see below), whose sum is σ = 26233643520. Its totient is φ = 3922080480.

The previous prime is 11785690447. The next prime is 11785690517. The reversal of 11785690458 is 85409658711.

It is a happy number.

11785690458 is a `hidden beast` number, since 1 + 1 + 78 + 569 + 0 + 4 + 5 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147003 + ... + 212558.

It is an arithmetic number, because the mean of its divisors is an integer number (819801360).

Almost surely, 2^11785690458 is an apocalyptic number.

11785690458 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11785690458 is an abundant number, since it is smaller than the sum of its proper divisors (14447953062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11785690458 is a wasteful number, since it uses less digits than its factorization.

11785690458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360179 (or 360173 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 54.

The spelling of 11785690458 in words is "eleven billion, seven hundred eighty-five million, six hundred ninety thousand, four hundred fifty-eight".