1975506763 has 4 divisors (see below), whose sum is σ = 1975835008. Its totient is φ = 1975178520.

The previous prime is 1975506751. The next prime is 1975506809. The reversal of 1975506763 is 3676055791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3676055791 = 47 ⋅78213953.

It is a cyclic number.

It is not a de Polignac number, because 1975506763 - 2¹⁷ = 1975375691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1975500763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154923 + ... + 167188.

It is an arithmetic number, because the mean of its divisors is an integer number (493958752).

Almost surely, 2^1975506763 is an apocalyptic number.

1975506763 is a deficient number, since it is larger than the sum of its proper divisors (328245).

1975506763 is an equidigital number, since it uses as much as digits as its factorization.

1975506763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328244.

The product of its (nonzero) digits is 1190700, while the sum is 49.

The square root of 1975506763 is about 44446.6732500870. The cubic root of 1975506763 is about 1254.7566525523.

The spelling of 1975506763 in words is "one billion, nine hundred seventy-five million, five hundred six thousand, seven hundred sixty-three".