748661749137 has 8 divisors (see below), whose sum is σ = 1109128517280. Its totient is φ = 499107832740.

The previous prime is 748661749109. The next prime is 748661749141. The reversal of 748661749137 is 731947166847.

748661749137 is a `hidden beast` number, since 7 + 4 + 8 + 6 + 617 + 4 + 9 + 1 + 3 + 7 = 666.

It is not a de Polignac number, because 748661749137 - 2¹⁰ = 748661748113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (748661749037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13864106439 + ... + 13864106492.

It is an arithmetic number, because the mean of its divisors is an integer number (138641064660).

Almost surely, 2^748661749137 is an apocalyptic number.

It is an amenable number.

748661749137 is a deficient number, since it is larger than the sum of its proper divisors (360466768143).

748661749137 is a wasteful number, since it uses less digits than its factorization.

748661749137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27728212940 (or 27728212934 counting only the distinct ones).

The product of its digits is 42674688, while the sum is 63.

The spelling of 748661749137 in words is "seven hundred forty-eight billion, six hundred sixty-one million, seven hundred forty-nine thousand, one hundred thirty-seven".