747507148417 has 4 divisors (see below), whose sum is σ = 747548038660. Its totient is φ = 747466258176.

The previous prime is 747507148361. The next prime is 747507148447. The reversal of 747507148417 is 714841705747.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 334952720001 + 412554428416 = 578751^2 + 642304^2 .

It is a cyclic number.

It is not a de Polignac number, because 747507148417 - 2²³ = 747498759809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (747507148447) 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, 20417688 + ... + 20454265.

It is an arithmetic number, because the mean of its divisors is an integer number (186887009665).

Almost surely, 2^747507148417 is an apocalyptic number.

It is an amenable number.

747507148417 is a deficient number, since it is larger than the sum of its proper divisors (40890243).

747507148417 is a wasteful number, since it uses less digits than its factorization.

747507148417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40890242.

The product of its (nonzero) digits is 6146560, while the sum is 55.

The spelling of 747507148417 in words is "seven hundred forty-seven billion, five hundred seven million, one hundred forty-eight thousand, four hundred seventeen".