249154789379 has 2 divisors, whose sum is σ = 249154789380. Its totient is φ = 249154789378.

The previous prime is 249154789337. The next prime is 249154789441. The reversal of 249154789379 is 973987451942.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 249154789379 - 2⁸ = 249154789123 is a prime.

It is not a weakly prime, because it can be changed into another prime (249154789679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124577394689 + 124577394690.

It is an arithmetic number, because the mean of its divisors is an integer number (124577394690).

Almost surely, 2^249154789379 is an apocalyptic number.

249154789379 is a deficient number, since it is larger than the sum of its proper divisors (1).

249154789379 is an equidigital number, since it uses as much as digits as its factorization.

249154789379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 137168640, while the sum is 68.

The spelling of 249154789379 in words is "two hundred forty-nine billion, one hundred fifty-four million, seven hundred eighty-nine thousand, three hundred seventy-nine".