1275245393740 has 12 divisors (see below), whose sum is σ = 2678015326896. Its totient is φ = 510098157488.

The previous prime is 1275245393701. The next prime is 1275245393753. The reversal of 1275245393740 is 473935425721.

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, 31881134824 + ... + 31881134863.

It is an arithmetic number, because the mean of its divisors is an integer number (223167943908).

Almost surely, 2^{1275245393740} is an apocalyptic number.

1275245393740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1275245393740 is an abundant number, since it is smaller than the sum of its proper divisors (1402769933156).

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

1275245393740 is a wasteful number, since it uses less digits than its factorization.

1275245393740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63762269696 (or 63762269694 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 52.

The spelling of 1275245393740 in words is "one trillion, two hundred seventy-five billion, two hundred forty-five million, three hundred ninety-three thousand, seven hundred forty".