1125278474768 has 30 divisors (see below), whose sum is σ = 2536182482526. Its totient is φ = 482262203136.

The previous prime is 1125278474759. The next prime is 1125278474773. The reversal of 1125278474768 is 8674748725211.

It can be written as a sum of positive squares in only one way, i.e., 842224681984 + 283053792784 = 917728^2 + 532028^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1125278474768.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 717651305 + ... + 717652872.

Almost surely, 2^{1125278474768} is an apocalyptic number.

It is an amenable number.

1125278474768 is an abundant number, since it is smaller than the sum of its proper divisors (1410904007758).

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

1125278474768 is a wasteful number, since it uses less digits than its factorization.

1125278474768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435304199 (or 1435304186 counting only the distinct ones).

The product of its digits is 42147840, while the sum is 62.

The spelling of 1125278474768 in words is "one trillion, one hundred twenty-five billion, two hundred seventy-eight million, four hundred seventy-four thousand, seven hundred sixty-eight".