77243757132215 has 16 divisors (see below), whose sum is σ = 92797902714720. Its totient is φ = 61724782753920.

The previous prime is 77243757132203. The next prime is 77243757132259. The reversal of 77243757132215 is 51223175734277.

It is not a de Polignac number, because 77243757132215 - 2¹⁴ = 77243757115831 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13043132 + ... + 18016958.

It is an arithmetic number, because the mean of its divisors is an integer number (5799868919670).

Almost surely, 2^{77243757132215} is an apocalyptic number.

77243757132215 is a deficient number, since it is larger than the sum of its proper divisors (15554145582505).

77243757132215 is a wasteful number, since it uses less digits than its factorization.

77243757132215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4977362.

The product of its digits is 17287200, while the sum is 56.

The spelling of 77243757132215 in words is "seventy-seven trillion, two hundred forty-three billion, seven hundred fifty-seven million, one hundred thirty-two thousand, two hundred fifteen".