261761401134202 has 8 divisors (see below), whose sum is σ = 397372729432896. Its totient is φ = 129303824656572.

The previous prime is 261761401134137. The next prime is 261761401134227. The reversal of 261761401134202 is 202431104167162.

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

It is a super-2 number, since 2×261761401134202² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 788437955058 + ... + 788437955389.

It is an arithmetic number, because the mean of its divisors is an integer number (49671591179112).

Almost surely, 2^{261761401134202} is an apocalyptic number.

261761401134202 is a deficient number, since it is larger than the sum of its proper divisors (135611328298694).

261761401134202 is a wasteful number, since it uses less digits than its factorization.

261761401134202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576875910532.

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 261761401134202 in words is "two hundred sixty-one trillion, seven hundred sixty-one billion, four hundred one million, one hundred thirty-four thousand, two hundred two".