1236952973672 has 256 divisors, whose sum is σ = 2722645094400. Its totient is φ = 522004055040.

The previous prime is 1236952973651. The next prime is 1236952973681. The reversal of 1236952973672 is 2763792596321.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3564705803 + ... + 3564706149.

It is an arithmetic number, because the mean of its divisors is an integer number (10635332400).

Almost surely, 2^{1236952973672} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1236952973672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1361322547200).

1236952973672 is an abundant number, since it is smaller than the sum of its proper divisors (1485692120728).

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

1236952973672 is a wasteful number, since it uses less digits than its factorization.

1236952973672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856 (or 852 counting only the distinct ones).

The product of its digits is 51438240, while the sum is 62.

The spelling of 1236952973672 in words is "one trillion, two hundred thirty-six billion, nine hundred fifty-two million, nine hundred seventy-three thousand, six hundred seventy-two".