8273761815047 has 4 divisors (see below), whose sum is σ = 8274039926400. Its totient is φ = 8273483703696.

The previous prime is 8273761815031. The next prime is 8273761815049. The reversal of 8273761815047 is 7405181673728.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 8273761815047 - 2⁴ = 8273761815031 is a prime.

It is a super-2 number, since 2×8273761815047² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8273761815049) 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, 139011047 + ... + 139070552.

It is an arithmetic number, because the mean of its divisors is an integer number (2068509981600).

Almost surely, 2^{8273761815047} is an apocalyptic number.

8273761815047 is a deficient number, since it is larger than the sum of its proper divisors (278111353).

8273761815047 is a wasteful number, since it uses less digits than its factorization.

8273761815047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278111352.

The product of its (nonzero) digits is 15805440, while the sum is 59.

The spelling of 8273761815047 in words is "eight trillion, two hundred seventy-three billion, seven hundred sixty-one million, eight hundred fifteen thousand, forty-seven".