742816334247 has 32 divisors (see below), whose sum is σ = 1092756934080. Its totient is φ = 445913825280.

The previous prime is 742816334233. The next prime is 742816334251. The reversal of 742816334247 is 742433618247.

It is not a de Polignac number, because 742816334247 - 2³⁵ = 708456595879 is a prime.

It is a super-2 number, since 2×742816334247² (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 742816334247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742816334207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15737779 + ... + 15784907.

It is an arithmetic number, because the mean of its divisors is an integer number (34148654190).

Almost surely, 2^742816334247 is an apocalyptic number.

742816334247 is a deficient number, since it is larger than the sum of its proper divisors (349940599833).

742816334247 is a wasteful number, since it uses less digits than its factorization.

742816334247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57043.

The product of its digits is 5419008, while the sum is 51.

The spelling of 742816334247 in words is "seven hundred forty-two billion, eight hundred sixteen million, three hundred thirty-four thousand, two hundred forty-seven".