1275377754140 has 48 divisors (see below), whose sum is σ = 3071956907712. Its totient is φ = 435693758976.

The previous prime is 1275377754139. The next prime is 1275377754149. The reversal of 1275377754140 is 414577735721.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275377754149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16404977 + ... + 16482536.

It is an arithmetic number, because the mean of its divisors is an integer number (63999102244).

Almost surely, 2^{1275377754140} is an apocalyptic number.

1275377754140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1275377754140 is an abundant number, since it is smaller than the sum of its proper divisors (1796579153572).

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

1275377754140 is a wasteful number, since it uses less digits than its factorization.

1275377754140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32887806 (or 32887804 counting only the distinct ones).

The product of its (nonzero) digits is 5762400, while the sum is 53.

The spelling of 1275377754140 in words is "one trillion, two hundred seventy-five billion, three hundred seventy-seven million, seven hundred fifty-four thousand, one hundred forty".