249776791963 has 8 divisors (see below), whose sum is σ = 255101567040. Its totient is φ = 244452449280.

The previous prime is 249776791919. The next prime is 249776791969. The reversal of 249776791963 is 369197677942.

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

It is a cyclic number.

It is not a de Polignac number, because 249776791963 - 2¹³ = 249776783771 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 249776791892 and 249776791901.

It is not an unprimeable number, because it can be changed into a prime (249776791969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1235653 + ... + 1423513.

It is an arithmetic number, because the mean of its divisors is an integer number (31887695880).

Almost surely, 2^249776791963 is an apocalyptic number.

249776791963 is a deficient number, since it is larger than the sum of its proper divisors (5324775077).

249776791963 is a wasteful number, since it uses less digits than its factorization.

249776791963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216197.

The product of its digits is 216040608, while the sum is 70.

The spelling of 249776791963 in words is "two hundred forty-nine billion, seven hundred seventy-six million, seven hundred ninety-one thousand, nine hundred sixty-three".