261033363974 has 16 divisors (see below), whose sum is σ = 402517397520. Its totient is φ = 126883395840.

The previous prime is 261033363973. The next prime is 261033363989. The reversal of 261033363974 is 479363330162.

It is a super-2 number, since 2×261033363974² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261033363973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5601059 + ... + 5647470.

It is an arithmetic number, because the mean of its divisors is an integer number (25157337345).

Almost surely, 2^261033363974 is an apocalyptic number.

261033363974 is a deficient number, since it is larger than the sum of its proper divisors (141484033546).

261033363974 is a wasteful number, since it uses less digits than its factorization.

261033363974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11248855.

The product of its (nonzero) digits is 1469664, while the sum is 47.

The spelling of 261033363974 in words is "two hundred sixty-one billion, thirty-three million, three hundred sixty-three thousand, nine hundred seventy-four".