1275265152650 has 48 divisors (see below), whose sum is σ = 2405420304408. Its totient is φ = 502959360000.

The previous prime is 1275265152479. The next prime is 1275265152661. The reversal of 1275265152650 is 562515625721.

It can be written as a sum of positive squares in 12 ways, for example, as 707124582649 + 568140570001 = 840907^2 + 753751^2 .

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1275265152595 and 1275265152604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 693134 + ... + 1740966.

Almost surely, 2^{1275265152650} is an apocalyptic number.

1275265152650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1275265152650 is a deficient number, since it is larger than the sum of its proper divisors (1130155151758).

1275265152650 is a wasteful number, since it uses less digits than its factorization.

1275265152650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048187 (or 1048182 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 47.

The spelling of 1275265152650 in words is "one trillion, two hundred seventy-five billion, two hundred sixty-five million, one hundred fifty-two thousand, six hundred fifty".