742646646247 has 16 divisors (see below), whose sum is σ = 838140890400. Its totient is φ = 651818352640.

The previous prime is 742646646233. The next prime is 742646646253.

742646646247 is nontrivially palindromic in base 10.

742646646247 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 not a de Polignac number, because 742646646247 - 2²³ = 742638257639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 742646646191 and 742646646200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742646646347) 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, 7381779 + ... + 7481707.

It is an arithmetic number, because the mean of its divisors is an integer number (52383805650).

Almost surely, 2^742646646247 is an apocalyptic number.

742646646247 is a deficient number, since it is larger than the sum of its proper divisors (95494244153).

742646646247 is a wasteful number, since it uses less digits than its factorization.

742646646247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123266.

The product of its digits is 65028096, while the sum is 58.

The spelling of 742646646247 in words is "seven hundred forty-two billion, six hundred forty-six million, six hundred forty-six thousand, two hundred forty-seven".