1375732256772 has 12 divisors (see below), whose sum is σ = 3210041932496. Its totient is φ = 458577418920.

The previous prime is 1375732256749. The next prime is 1375732256783. The reversal of 1375732256772 is 2776522375731.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57322177354 + ... + 57322177377.

Almost surely, 2^{1375732256772} is an apocalyptic number.

1375732256772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1375732256772 is an abundant number, since it is smaller than the sum of its proper divisors (1834309675724).

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

1375732256772 is a wasteful number, since it uses less digits than its factorization.

1375732256772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114644354738 (or 114644354736 counting only the distinct ones).

The product of its digits is 25930800, while the sum is 57.

The spelling of 1375732256772 in words is "one trillion, three hundred seventy-five billion, seven hundred thirty-two million, two hundred fifty-six thousand, seven hundred seventy-two".