428157577576 has 8 divisors (see below), whose sum is σ = 802795457970. Its totient is φ = 214078788784.

The previous prime is 428157577531. The next prime is 428157577583. The reversal of 428157577576 is 675775751824.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 286518255076 + 141639322500 = 535274^2 + 376350^2 .

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

It is a super-2 number, since 2×428157577576² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26759848591 + ... + 26759848606.

Almost surely, 2^428157577576 is an apocalyptic number.

It is an amenable number.

428157577576 is a deficient number, since it is larger than the sum of its proper divisors (374637880394).

428157577576 is a wasteful number, since it uses less digits than its factorization.

428157577576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53519697203 (or 53519697199 counting only the distinct ones).

The product of its digits is 115248000, while the sum is 64.

The spelling of 428157577576 in words is "four hundred twenty-eight billion, one hundred fifty-seven million, five hundred seventy-seven thousand, five hundred seventy-six".