1187472334440 has 128 divisors (see below), whose sum is σ = 4087176226560. Its totient is φ = 270366081024.

The previous prime is 1187472334403. The next prime is 1187472334453. The reversal of 1187472334440 is 444332747811.

It is a super-3 number, since 3×1187472334440³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1187472334440.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2534427 + ... + 2966186.

It is an arithmetic number, because the mean of its divisors is an integer number (31931064270).

Almost surely, 2^{1187472334440} is an apocalyptic number.

1187472334440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1187472334440 is an abundant number, since it is smaller than the sum of its proper divisors (2899703892120).

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

1187472334440 is a wasteful number, since it uses less digits than its factorization.

1187472334440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5500891 (or 5500887 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 48.

The spelling of 1187472334440 in words is "one trillion, one hundred eighty-seven billion, four hundred seventy-two million, three hundred thirty-four thousand, four hundred forty".