254745073140 has 96 divisors (see below), whose sum is σ = 725415820416. Its totient is φ = 66778160640.

The previous prime is 254745073139. The next prime is 254745073171. The reversal of 254745073140 is 41370547452.

It is a junction number, because it is equal to n+sod(n) for n = 254745073092 and 254745073101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6322699 + ... + 6362861.

It is an arithmetic number, because the mean of its divisors is an integer number (7556414796).

Almost surely, 2^254745073140 is an apocalyptic number.

254745073140 is a gapful number since it is divisible by the number (20) 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 254745073140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362707910208).

254745073140 is an abundant number, since it is smaller than the sum of its proper divisors (470670747276).

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

254745073140 is a wasteful number, since it uses less digits than its factorization.

254745073140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41969 (or 41967 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 42.

The spelling of 254745073140 in words is "two hundred fifty-four billion, seven hundred forty-five million, seventy-three thousand, one hundred forty".