287540412146 has 24 divisors (see below), whose sum is σ = 479955233772. Its totient is φ = 128429949600.

The previous prime is 287540412077. The next prime is 287540412163. The reversal of 287540412146 is 641214045782.

It can be written as a sum of positive squares in 2 ways, for example, as 263697655225 + 23842756921 = 513515^2 + 154411^2 .

It is a junction number, because it is equal to n+sod(n) for n = 287540412097 and 287540412106.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5729045 + ... + 5779016.

Almost surely, 2^287540412146 is an apocalyptic number.

287540412146 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

287540412146 is a deficient number, since it is larger than the sum of its proper divisors (192414821626).

287540412146 is a wasteful number, since it uses less digits than its factorization.

287540412146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11508138 (or 11508107 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 44.

The spelling of 287540412146 in words is "two hundred eighty-seven billion, five hundred forty million, four hundred twelve thousand, one hundred forty-six".