254215779888 has 160 divisors (see below), whose sum is σ = 764946040320. Its totient is φ = 71244564480.

The previous prime is 254215779887. The next prime is 254215779911. The reversal of 254215779888 is 888977512452.

It is a happy number.

It is a super-3 number, since 3×254215779888³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (254215779887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9124956 + ... + 9152772.

It is an arithmetic number, because the mean of its divisors is an integer number (4780912752).

Almost surely, 2^254215779888 is an apocalyptic number.

254215779888 is a gapful number since it is divisible by the number (28) 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 254215779888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382473020160).

254215779888 is an abundant number, since it is smaller than the sum of its proper divisors (510730260432).

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

254215779888 is a wasteful number, since it uses less digits than its factorization.

254215779888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28355 (or 28349 counting only the distinct ones).

The product of its digits is 90316800, while the sum is 66.

The spelling of 254215779888 in words is "two hundred fifty-four billion, two hundred fifteen million, seven hundred seventy-nine thousand, eight hundred eighty-eight".