1311959973632 has 1152 divisors, whose sum is σ = 3933270835200. Its totient is φ = 421886361600.

The previous prime is 1311959973629. The next prime is 1311959973677. The reversal of 1311959973632 is 2363799591131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 42321289457 + ... + 42321289487.

It is an arithmetic number, because the mean of its divisors is an integer number (3414297600).

Almost surely, 2^{1311959973632} 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 1311959973632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1966635417600).

1311959973632 is an abundant number, since it is smaller than the sum of its proper divisors (2621310861568).

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

1311959973632 is a wasteful number, since it uses less digits than its factorization.

1311959973632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 110 counting only the distinct ones).

The product of its digits is 8266860, while the sum is 59.

The spelling of 1311959973632 in words is "one trillion, three hundred eleven billion, nine hundred fifty-nine million, nine hundred seventy-three thousand, six hundred thirty-two".