1185479000644 has 24 divisors (see below), whose sum is σ = 2081026297728. Its totient is φ = 590902209120.

The previous prime is 1185479000617. The next prime is 1185479000653. The reversal of 1185479000644 is 4460009745811.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1943914 + ... + 2479870.

It is an arithmetic number, because the mean of its divisors is an integer number (86709429072).

Almost surely, 2^{1185479000644} is an apocalyptic number.

It is an amenable number.

1185479000644 is a deficient number, since it is larger than the sum of its proper divisors (895547297084).

1185479000644 is a wasteful number, since it uses less digits than its factorization.

1185479000644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537675 (or 537673 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 1185479000644 in words is "one trillion, one hundred eighty-five billion, four hundred seventy-nine million, six hundred forty-four", and thus it is an aban number.