77283442055 has 4 divisors (see below), whose sum is σ = 92740130472. Its totient is φ = 61826753640.

The previous prime is 77283442037. The next prime is 77283442079. The reversal of 77283442055 is 55024438277.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55024438277 = 69427 ⋅792551.

It is not a de Polignac number, because 77283442055 - 2²⁸ = 77015006599 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 7728344201 + ... + 7728344210.

It is an arithmetic number, because the mean of its divisors is an integer number (23185032618).

Almost surely, 2^77283442055 is an apocalyptic number.

77283442055 is a deficient number, since it is larger than the sum of its proper divisors (15456688417).

77283442055 is a wasteful number, since it uses less digits than its factorization.

77283442055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15456688416.

The product of its (nonzero) digits is 1881600, while the sum is 47.

The spelling of 77283442055 in words is "seventy-seven billion, two hundred eighty-three million, four hundred forty-two thousand, fifty-five".