1236849474160 has 80 divisors (see below), whose sum is σ = 2911326198912. Its totient is φ = 488634220800.

The previous prime is 1236849474121. The next prime is 1236849474163. The reversal of 1236849474160 is 614749486321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1236849474163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2615095 + ... + 3051625.

Almost surely, 2^{1236849474160} is an apocalyptic number.

1236849474160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1236849474160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1455663099456).

1236849474160 is an abundant number, since it is smaller than the sum of its proper divisors (1674476724752).

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

1236849474160 is a wasteful number, since it uses less digits than its factorization.

1236849474160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436982 (or 436976 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 55.

The spelling of 1236849474160 in words is "one trillion, two hundred thirty-six billion, eight hundred forty-nine million, four hundred seventy-four thousand, one hundred sixty".