1947104879772 has 24 divisors (see below), whose sum is σ = 4892725082896. Its totient is φ = 599109193728.

The previous prime is 1947104879767. The next prime is 1947104879773. The reversal of 1947104879772 is 2779784017491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1947104879773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6240720613 + ... + 6240720924.

Almost surely, 2^{1947104879772} is an apocalyptic number.

1947104879772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1947104879772 is an abundant number, since it is smaller than the sum of its proper divisors (2945620203124).

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

1947104879772 is a wasteful number, since it uses less digits than its factorization.

1947104879772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12481441557 (or 12481441555 counting only the distinct ones).

The product of its (nonzero) digits is 49787136, while the sum is 66.

The spelling of 1947104879772 in words is "one trillion, nine hundred forty-seven billion, one hundred four million, eight hundred seventy-nine thousand, seven hundred seventy-two".