742440202044247 has 32 divisors (see below), whose sum is σ = 860270378901120. Its totient is φ = 627604418764800.

The previous prime is 742440202044221. The next prime is 742440202044251.

742440202044247 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 742440202044247 - 2⁷ = 742440202044119 is a prime.

It is a super-2 number, since 2×742440202044247² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 742440202044197 and 742440202044206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742440200044247) 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, 289405279 + ... + 291959407.

It is an arithmetic number, because the mean of its divisors is an integer number (26883449340660).

Almost surely, 2^{742440202044247} is an apocalyptic number.

742440202044247 is a deficient number, since it is larger than the sum of its proper divisors (117830176856873).

742440202044247 is a wasteful number, since it uses less digits than its factorization.

742440202044247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555851.

The product of its (nonzero) digits is 3211264, while the sum is 46.

It can be divided in two parts, 74244020 and 2044247, that added together give a palindrome (76288267).

The spelling of 742440202044247 in words is "seven hundred forty-two trillion, four hundred forty billion, two hundred two million, forty-four thousand, two hundred forty-seven".