1187473136864 has 48 divisors (see below), whose sum is σ = 2828980129248. Its totient is φ = 478980759552.

The previous prime is 1187473136849. The next prime is 1187473136867. The reversal of 1187473136864 is 4686313747811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1187473136867) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 155914409 + ... + 155922024.

It is an arithmetic number, because the mean of its divisors is an integer number (58937086026).

Almost surely, 2^{1187473136864} is an apocalyptic number.

1187473136864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1187473136864 is an abundant number, since it is smaller than the sum of its proper divisors (1641506992384).

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

1187473136864 is a wasteful number, since it uses less digits than its factorization.

1187473136864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311836467 (or 311836459 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 59.

The spelling of 1187473136864 in words is "one trillion, one hundred eighty-seven billion, four hundred seventy-three million, one hundred thirty-six thousand, eight hundred sixty-four".