428235204968 has 8 divisors (see below), whose sum is σ = 802941009330. Its totient is φ = 214117602480.

The previous prime is 428235204949. The next prime is 428235204989. The reversal of 428235204968 is 869402532824.

It can be written as a sum of positive squares in only one way, i.e., 402410072164 + 25825132804 = 634358^2 + 160702^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26764700303 + ... + 26764700318.

Almost surely, 2^428235204968 is an apocalyptic number.

It is an amenable number.

428235204968 is a deficient number, since it is larger than the sum of its proper divisors (374705804362).

428235204968 is a wasteful number, since it uses less digits than its factorization.

428235204968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53529400627 (or 53529400623 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 53.

The spelling of 428235204968 in words is "four hundred twenty-eight billion, two hundred thirty-five million, two hundred four thousand, nine hundred sixty-eight".