1691313763 has 8 divisors (see below), whose sum is σ = 1791191808. Its totient is φ = 1593630984.

The previous prime is 1691313761. The next prime is 1691313769. The reversal of 1691313763 is 3673131961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1691313763 - 2¹ = 1691313761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1691313761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547231 + ... + 550312.

It is an arithmetic number, because the mean of its divisors is an integer number (223898976).

Almost surely, 2^1691313763 is an apocalyptic number.

1691313763 is a deficient number, since it is larger than the sum of its proper divisors (99878045).

1691313763 is a wasteful number, since it uses less digits than its factorization.

1691313763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097633.

The product of its digits is 61236, while the sum is 40.

The square root of 1691313763 is about 41125.5852602732. The cubic root of 1691313763 is about 1191.4469988194.

The spelling of 1691313763 in words is "one billion, six hundred ninety-one million, three hundred thirteen thousand, seven hundred sixty-three".