254040242123392 has 16 divisors (see below), whose sum is σ = 506095794855450. Its totient is φ = 127020121061632.

The previous prime is 254040242123383. The next prime is 254040242123401. The reversal of 254040242123392 is 293321242040452.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (254040242123383) and next prime (254040242123401).

It can be written as a sum of positive squares in only one way, i.e., 138120222031936 + 115920020091456 = 11752456^2 + 10766616^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×254040242123392² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 992344695667 + ... + 992344695922.

Almost surely, 2^{254040242123392} is an apocalyptic number.

It is an amenable number.

254040242123392 is a deficient number, since it is larger than the sum of its proper divisors (252055552732058).

254040242123392 is an equidigital number, since it uses as much as digits as its factorization.

254040242123392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984689391603 (or 1984689391591 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 43.

The spelling of 254040242123392 in words is "two hundred fifty-four trillion, forty billion, two hundred forty-two million, one hundred twenty-three thousand, three hundred ninety-two".