249379913401 has 2 divisors, whose sum is σ = 249379913402. Its totient is φ = 249379913400.

The previous prime is 249379913369. The next prime is 249379913417. The reversal of 249379913401 is 104319973942.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 248925157776 + 454755625 = 498924^2 + 21325^2 .

It is a cyclic number.

It is not a de Polignac number, because 249379913401 - 2⁵ = 249379913369 is a prime.

It is not a weakly prime, because it can be changed into another prime (249379913201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124689956700 + 124689956701.

It is an arithmetic number, because the mean of its divisors is an integer number (124689956701).

Almost surely, 2^249379913401 is an apocalyptic number.

It is an amenable number.

249379913401 is a deficient number, since it is larger than the sum of its proper divisors (1).

249379913401 is an equidigital number, since it uses as much as digits as its factorization.

249379913401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 52.

The spelling of 249379913401 in words is "two hundred forty-nine billion, three hundred seventy-nine million, nine hundred thirteen thousand, four hundred one".