742855020361 has 4 divisors (see below), whose sum is σ = 742873711300. Its totient is φ = 742836329424.

The previous prime is 742855020359. The next prime is 742855020367. The reversal of 742855020361 is 163020558247.

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 700560630025 + 42294390336 = 836995^2 + 205656^2 .

It is a cyclic number.

It is not a de Polignac number, because 742855020361 - 2¹ = 742855020359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742855020367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9285726 + ... + 9365383.

It is an arithmetic number, because the mean of its divisors is an integer number (185718427825).

Almost surely, 2^742855020361 is an apocalyptic number.

It is an amenable number.

742855020361 is a deficient number, since it is larger than the sum of its proper divisors (18690939).

742855020361 is a wasteful number, since it uses less digits than its factorization.

742855020361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18690938.

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 742855020361 in words is "seven hundred forty-two billion, eight hundred fifty-five million, twenty thousand, three hundred sixty-one".