425455240144512 has 128 divisors (see below), whose sum is σ = 1161751055794560. Its totient is φ = 137855670792192.

The previous prime is 425455240144489. The next prime is 425455240144621. The reversal of 425455240144512 is 215441042554524.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×425455240144512² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1018078 + ... + 29188130.

It is an arithmetic number, because the mean of its divisors is an integer number (9076180123395).

Almost surely, 2^{425455240144512} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425455240144512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (580875527897280).

425455240144512 is an abundant number, since it is smaller than the sum of its proper divisors (736295815650048).

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

425455240144512 is a wasteful number, since it uses less digits than its factorization.

425455240144512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28171170 (or 28171158 counting only the distinct ones).

The product of its (nonzero) digits is 5120000, while the sum is 48.

The spelling of 425455240144512 in words is "four hundred twenty-five trillion, four hundred fifty-five billion, two hundred forty million, one hundred forty-four thousand, five hundred twelve".