87783266238778 has 8 divisors (see below), whose sum is σ = 143645344754400. Its totient is φ = 39901484653980.

The previous prime is 87783266238749. The next prime is 87783266238907.

87783266238778 is nontrivially palindromic in base 10.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1995074232678 + ... + 1995074232721.

It is an arithmetic number, because the mean of its divisors is an integer number (17955668094300).

Almost surely, 2^{87783266238778} is an apocalyptic number.

87783266238778 is a deficient number, since it is larger than the sum of its proper divisors (55862078515622).

87783266238778 is a wasteful number, since it uses less digits than its factorization.

87783266238778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3990148465412.

The product of its digits is 12745506816, while the sum is 82.

The spelling of 87783266238778 in words is "eighty-seven trillion, seven hundred eighty-three billion, two hundred sixty-six million, two hundred thirty-eight thousand, seven hundred seventy-eight".