748630511809 has 4 divisors (see below), whose sum is σ = 753588329920. Its totient is φ = 743672693700.

The previous prime is 748630511779. The next prime is 748630511899. The reversal of 748630511809 is 908115036847.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 748630511809 - 2¹³ = 748630503617 is a prime.

It is a super-2 number, since 2×748630511809² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (748630511899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2478908829 + ... + 2478909130.

It is an arithmetic number, because the mean of its divisors is an integer number (188397082480).

Almost surely, 2^748630511809 is an apocalyptic number.

It is an amenable number.

748630511809 is a deficient number, since it is larger than the sum of its proper divisors (4957818111).

748630511809 is a wasteful number, since it uses less digits than its factorization.

748630511809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4957818110.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 748630511809 in words is "seven hundred forty-eight billion, six hundred thirty million, five hundred eleven thousand, eight hundred nine".