425533787335524 has 384 divisors, whose sum is σ = 1215637307523072. Its totient is φ = 113238415825920.

The previous prime is 425533787335519. The next prime is 425533787335633.

It is a happy number.

425533787335524 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×425533787335524² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 64406503029 + ... + 64406509635.

It is an arithmetic number, because the mean of its divisors is an integer number (3165722155008).

Almost surely, 2^{425533787335524} 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 425533787335524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (607818653761536).

425533787335524 is an abundant number, since it is smaller than the sum of its proper divisors (790103520187548).

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

425533787335524 is a wasteful number, since it uses less digits than its factorization.

425533787335524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12455 (or 12453 counting only the distinct ones).

The product of its digits is 1270080000, while the sum is 66.

The spelling of 425533787335524 in words is "four hundred twenty-five trillion, five hundred thirty-three billion, seven hundred eighty-seven million, three hundred thirty-five thousand, five hundred twenty-four".