84122777774 has 16 divisors (see below), whose sum is σ = 144215010816. Its totient is φ = 36051485400.

The previous prime is 84122777741. The next prime is 84122777803. The reversal of 84122777774 is 47777722148.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492359 + ... + 640829.

It is an arithmetic number, because the mean of its divisors is an integer number (9013438176).

Almost surely, 2^84122777774 is an apocalyptic number.

84122777774 is a deficient number, since it is larger than the sum of its proper divisors (60092233042).

84122777774 is a wasteful number, since it uses less digits than its factorization.

84122777774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188951.

The product of its digits is 8605184, while the sum is 56.

The spelling of 84122777774 in words is "eighty-four billion, one hundred twenty-two million, seven hundred seventy-seven thousand, seven hundred seventy-four".