428077522676 has 6 divisors (see below), whose sum is σ = 749135664690. Its totient is φ = 214038761336.

The previous prime is 428077522661. The next prime is 428077522681. The reversal of 428077522676 is 676225770824.

It can be written as a sum of positive squares in only one way, i.e., 401727792400 + 26349730276 = 633820^2 + 162326^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53509690331 + ... + 53509690338.

It is an arithmetic number, because the mean of its divisors is an integer number (124855944115).

Almost surely, 2^428077522676 is an apocalyptic number.

It is an amenable number.

428077522676 is a deficient number, since it is larger than the sum of its proper divisors (321058142014).

428077522676 is a wasteful number, since it uses less digits than its factorization.

428077522676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107019380673 (or 107019380671 counting only the distinct ones).

The product of its (nonzero) digits is 15805440, while the sum is 56.

The spelling of 428077522676 in words is "four hundred twenty-eight billion, seventy-seven million, five hundred twenty-two thousand, six hundred seventy-six".