428565518870764 has 48 divisors (see below), whose sum is σ = 840309739879680. Its totient is φ = 189531601479360.

The previous prime is 428565518870761. The next prime is 428565518870767. The reversal of 428565518870764 is 467078815565824.

It is an interprime number because it is at equal distance from previous prime (428565518870761) and next prime (428565518870767).

It is not an unprimeable number, because it can be changed into a prime (428565518870761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47713927 + ... + 55979905.

It is an arithmetic number, because the mean of its divisors is an integer number (17506452914160).

Almost surely, 2^{428565518870764} is an apocalyptic number.

428565518870764 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

428565518870764 is a deficient number, since it is larger than the sum of its proper divisors (411744221008916).

428565518870764 is a wasteful number, since it uses less digits than its factorization.

428565518870764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8297878 (or 8297876 counting only the distinct ones).

The product of its (nonzero) digits is 3612672000, while the sum is 76.

The spelling of 428565518870764 in words is "four hundred twenty-eight trillion, five hundred sixty-five billion, five hundred eighteen million, eight hundred seventy thousand, seven hundred sixty-four".