11487215394 has 40 divisors (see below), whose sum is σ = 26176162320. Its totient is φ = 3764169144.

The previous prime is 11487215387. The next prime is 11487215413. The reversal of 11487215394 is 49351278411.

11487215394 is a `hidden beast` number, since 1 + 1 + 48 + 7 + 215 + 394 = 666.

It is a super-2 number, since 2×11487215394² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 591364 + ... + 610479.

It is an arithmetic number, because the mean of its divisors is an integer number (654404058).

Almost surely, 2^11487215394 is an apocalyptic number.

11487215394 is an abundant number, since it is smaller than the sum of its proper divisors (14688946926).

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

11487215394 is a wasteful number, since it uses less digits than its factorization.

11487215394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201916 (or 1201907 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The spelling of 11487215394 in words is "eleven billion, four hundred eighty-seven million, two hundred fifteen thousand, three hundred ninety-four".