1375138877650 has 12 divisors (see below), whose sum is σ = 2557758312522. Its totient is φ = 550055551040.

The previous prime is 1375138877647. The next prime is 1375138877677. The reversal of 1375138877650 is 567788315731.

It can be written as a sum of positive squares in 3 ways, for example, as 1327746893841 + 47391983809 = 1152279^2 + 217697^2 .

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, 13751388727 + ... + 13751388826.

Almost surely, 2^{1375138877650} is an apocalyptic number.

1375138877650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1375138877650 is a deficient number, since it is larger than the sum of its proper divisors (1182619434872).

1375138877650 is a wasteful number, since it uses less digits than its factorization.

1375138877650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27502777565 (or 27502777560 counting only the distinct ones).

The product of its (nonzero) digits is 29635200, while the sum is 61.

The spelling of 1375138877650 in words is "one trillion, three hundred seventy-five billion, one hundred thirty-eight million, eight hundred seventy-seven thousand, six hundred fifty".