748006521613 has 16 divisors (see below), whose sum is σ = 807500453760. Its totient is φ = 688793789376.

The previous prime is 748006521551. The next prime is 748006521631. The reversal of 748006521613 is 316125600847.

748006521613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-748006521613 is a prime.

It is a super-2 number, since 2×748006521613² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 748006521613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (748006528613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9530256 + ... + 9608422.

It is an arithmetic number, because the mean of its divisors is an integer number (50468778360).

Almost surely, 2^748006521613 is an apocalyptic number.

It is an amenable number.

748006521613 is a deficient number, since it is larger than the sum of its proper divisors (59493932147).

748006521613 is a wasteful number, since it uses less digits than its factorization.

748006521613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79956.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 748006521613 in words is "seven hundred forty-eight billion, six million, five hundred twenty-one thousand, six hundred thirteen".