254499077138 has 8 divisors (see below), whose sum is σ = 382532495232. Its totient is φ = 126988245396.

The previous prime is 254499077137. The next prime is 254499077227. The reversal of 254499077138 is 831770994452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (254499077137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130645370 + ... + 130647317.

It is an arithmetic number, because the mean of its divisors is an integer number (47816561904).

Almost surely, 2^254499077138 is an apocalyptic number.

254499077138 is a deficient number, since it is larger than the sum of its proper divisors (128033418094).

254499077138 is a wasteful number, since it uses less digits than its factorization.

254499077138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261293176.

The product of its (nonzero) digits is 15240960, while the sum is 59.

The spelling of 254499077138 in words is "two hundred fifty-four billion, four hundred ninety-nine million, seventy-seven thousand, one hundred thirty-eight".