428154712560 has 240 divisors, whose sum is σ = 1457659846656. Its totient is φ = 112615206912.

The previous prime is 428154712549. The next prime is 428154712619. The reversal of 428154712560 is 65217451824.

428154712560 is a `hidden beast` number, since 4 + 2 + 8 + 15 + 4 + 71 + 2 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15472657 + ... + 15500303.

Almost surely, 2^428154712560 is an apocalyptic number.

428154712560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428154712560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (728829923328).

428154712560 is an abundant number, since it is smaller than the sum of its proper divisors (1029505134096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428154712560 is a wasteful number, since it uses less digits than its factorization.

428154712560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27960 (or 27951 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 428154712560 in words is "four hundred twenty-eight billion, one hundred fifty-four million, seven hundred twelve thousand, five hundred sixty".