261552377460043 has 8 divisors (see below), whose sum is σ = 271109839527296. Its totient is φ = 252064933430400.

The previous prime is 261552377460041. The next prime is 261552377460103. The reversal of 261552377460043 is 340064773255162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 261552377460043 - 2¹ = 261552377460041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (261552377460041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17504501796 + ... + 17504516737.

It is an arithmetic number, because the mean of its divisors is an integer number (33888729940912).

Almost surely, 2^{261552377460043} is an apocalyptic number.

261552377460043 is a deficient number, since it is larger than the sum of its proper divisors (9557462067253).

261552377460043 is a wasteful number, since it uses less digits than its factorization.

261552377460043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35009018805.

The product of its (nonzero) digits is 25401600, while the sum is 55.

The spelling of 261552377460043 in words is "two hundred sixty-one trillion, five hundred fifty-two billion, three hundred seventy-seven million, four hundred sixty thousand, forty-three".