428273762545 has 8 divisors (see below), whose sum is σ = 514635436224. Its totient is φ = 342147729264.

The previous prime is 428273762519. The next prime is 428273762557. The reversal of 428273762545 is 545267372824.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 428273762545 - 2²⁷ = 428139544817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58906099 + ... + 58913368.

It is an arithmetic number, because the mean of its divisors is an integer number (64329429528).

Almost surely, 2^428273762545 is an apocalyptic number.

It is an amenable number.

428273762545 is a deficient number, since it is larger than the sum of its proper divisors (86361673679).

428273762545 is a wasteful number, since it uses less digits than its factorization.

428273762545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117820199.

The product of its digits is 22579200, while the sum is 55.

The spelling of 428273762545 in words is "four hundred twenty-eight billion, two hundred seventy-three million, seven hundred sixty-two thousand, five hundred forty-five".