1147733477478 has 64 divisors (see below), whose sum is σ = 2915253726720. Its totient is φ = 327881657376.

The previous prime is 1147733477467. The next prime is 1147733477483. The reversal of 1147733477478 is 8747743377411.

1147733477478 is a `hidden beast` number, since 11 + 47 + 73 + 3 + 47 + 7 + 478 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2807301 + ... + 3190047.

It is an arithmetic number, because the mean of its divisors is an integer number (45550839480).

Almost surely, 2^{1147733477478} is an apocalyptic number.

1147733477478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1147733477478 is an abundant number, since it is smaller than the sum of its proper divisors (1767520249242).

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

1147733477478 is a wasteful number, since it uses less digits than its factorization.

1147733477478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390698 (or 390692 counting only the distinct ones).

The product of its digits is 77446656, while the sum is 63.

The spelling of 1147733477478 in words is "one trillion, one hundred forty-seven billion, seven hundred thirty-three million, four hundred seventy-seven thousand, four hundred seventy-eight".