1475997229818 has 24 divisors (see below), whose sum is σ = 3201851682900. Its totient is φ = 491405586624.

The previous prime is 1475997229807. The next prime is 1475997229831. The reversal of 1475997229818 is 8189227995741.

1475997229818 is a `hidden beast` number, since 1 + 4 + 7 + 599 + 7 + 2 + 29 + 8 + 1 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1475649146169 + 348083649 = 1214763^2 + 18657^2 .

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, 49442163 + ... + 49472006.

Almost surely, 2^{1475997229818} is an apocalyptic number.

1475997229818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1475997229818 is an abundant number, since it is smaller than the sum of its proper divisors (1725854453082).

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

1475997229818 is a wasteful number, since it uses less digits than its factorization.

1475997229818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98915006 (or 98915003 counting only the distinct ones).

The product of its digits is 182891520, while the sum is 72.

The spelling of 1475997229818 in words is "one trillion, four hundred seventy-five billion, nine hundred ninety-seven million, two hundred twenty-nine thousand, eight hundred eighteen".