11474778512 has 10 divisors (see below), whose sum is σ = 22232383398. Its totient is φ = 5737389248.

The previous prime is 11474778463. The next prime is 11474778521. The reversal of 11474778512 is 21587747411.

It can be written as a sum of positive squares in only one way, i.e., 10845972736 + 628805776 = 104144^2 + 25076^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358586813 + ... + 358586844.

Almost surely, 2^11474778512 is an apocalyptic number.

It is an amenable number.

11474778512 is a deficient number, since it is larger than the sum of its proper divisors (10757604886).

11474778512 is an equidigital number, since it uses as much as digits as its factorization.

11474778512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717173665 (or 717173659 counting only the distinct ones).

The product of its digits is 439040, while the sum is 47.

The spelling of 11474778512 in words is "eleven billion, four hundred seventy-four million, seven hundred seventy-eight thousand, five hundred twelve".