2261103215767 has 4 divisors (see below), whose sum is σ = 2466658053576. Its totient is φ = 2055548377960.

The previous prime is 2261103215753. The next prime is 2261103215851. The reversal of 2261103215767 is 7675123011622.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-2261103215767 is a prime.

It is a super-3 number, since 3×2261103215767³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261103215717) 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, 102777418888 + ... + 102777418909.

It is an arithmetic number, because the mean of its divisors is an integer number (616664513394).

Almost surely, 2^{2261103215767} is an apocalyptic number.

2261103215767 is a deficient number, since it is larger than the sum of its proper divisors (205554837809).

2261103215767 is a wasteful number, since it uses less digits than its factorization.

2261103215767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205554837808.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 2261103215767 in words is "two trillion, two hundred sixty-one billion, one hundred three million, two hundred fifteen thousand, seven hundred sixty-seven".