38777440430255 has 4 divisors (see below), whose sum is σ = 46532928516312. Its totient is φ = 31021952344200.

The previous prime is 38777440430227. The next prime is 38777440430257. The reversal of 38777440430255 is 55203404477783.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 38777440430255 - 2¹² = 38777440426159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38777440430194 and 38777440430203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38777440430257) 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, 3877744043021 + ... + 3877744043030.

It is an arithmetic number, because the mean of its divisors is an integer number (11633232129078).

Almost surely, 2^{38777440430255} is an apocalyptic number.

38777440430255 is a deficient number, since it is larger than the sum of its proper divisors (7755488086057).

38777440430255 is an equidigital number, since it uses as much as digits as its factorization.

38777440430255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7755488086056.

The product of its (nonzero) digits is 79027200, while the sum is 59.

The spelling of 38777440430255 in words is "thirty-eight trillion, seven hundred seventy-seven billion, four hundred forty million, four hundred thirty thousand, two hundred fifty-five".