253420649794776 has 64 divisors (see below), whose sum is σ = 661103512531200. Its totient is φ = 80800033362048.

The previous prime is 253420649794771. The next prime is 253420649794787. The reversal of 253420649794776 is 677497946024352.

It is a junction number, because it is equal to n+sod(n) for n = 253420649794698 and 253420649794707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253420649794771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58666890 + ... + 62838246.

It is an arithmetic number, because the mean of its divisors is an integer number (10329742383300).

Almost surely, 2^{253420649794776} is an apocalyptic number.

It is an amenable number.

253420649794776 is an abundant number, since it is smaller than the sum of its proper divisors (407682862736424).

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

253420649794776 is a wasteful number, since it uses less digits than its factorization.

253420649794776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4281448 (or 4281444 counting only the distinct ones).

The product of its (nonzero) digits is 3840721920, while the sum is 75.

The spelling of 253420649794776 in words is "two hundred fifty-three trillion, four hundred twenty billion, six hundred forty-nine million, seven hundred ninety-four thousand, seven hundred seventy-six".