254136425984 has 80 divisors (see below), whose sum is σ = 580491120000. Its totient is φ = 108882745344.

The previous prime is 254136425981. The next prime is 254136425999. The reversal of 254136425984 is 489524631452.

It is a super-2 number, since 2×254136425984² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254136425981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14682167 + ... + 14699465.

It is an arithmetic number, because the mean of its divisors is an integer number (7256139000).

Almost surely, 2^254136425984 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 254136425984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290245560000).

254136425984 is an abundant number, since it is smaller than the sum of its proper divisors (326354694016).

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

254136425984 is an equidigital number, since it uses as much as digits as its factorization.

254136425984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21423 (or 21407 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 53.

The spelling of 254136425984 in words is "two hundred fifty-four billion, one hundred thirty-six million, four hundred twenty-five thousand, nine hundred eighty-four".