249388000001 has 16 divisors (see below), whose sum is σ = 301816730880. Its totient is φ = 201162762240.

The previous prime is 249387999997. The next prime is 249388000051. The reversal of 249388000001 is 100000883942.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 249388000001 - 2² = 249387999997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (249388000051) 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, 902756 + ... + 1146186.

It is an arithmetic number, because the mean of its divisors is an integer number (18863545680).

Almost surely, 2^249388000001 is an apocalyptic number.

It is an amenable number.

249388000001 is a deficient number, since it is larger than the sum of its proper divisors (52428730879).

249388000001 is a wasteful number, since it uses less digits than its factorization.

249388000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252064.

The product of its (nonzero) digits is 13824, while the sum is 35.

Adding to 249388000001 its reverse (100000883942), we get a palindrome (349388883943).

The spelling of 249388000001 in words is "two hundred forty-nine billion, three hundred eighty-eight million, one", and thus it is an aban number.