1275630724690 has 32 divisors (see below), whose sum is σ = 2625621719040. Its totient is φ = 437114591424.

The previous prime is 1275630724679. The next prime is 1275630724717. The reversal of 1275630724690 is 964270365721.

It is a happy number.

It is a super-2 number, since 2×1275630724690² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4967922 + ... + 5218381.

It is an arithmetic number, because the mean of its divisors is an integer number (82050678720).

Almost surely, 2^{1275630724690} is an apocalyptic number.

1275630724690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1275630724690 is an abundant number, since it is smaller than the sum of its proper divisors (1349990994350).

1275630724690 is a wasteful number, since it uses less digits than its factorization.

1275630724690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10188106.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 1275630724690 in words is "one trillion, two hundred seventy-five billion, six hundred thirty million, seven hundred twenty-four thousand, six hundred ninety".