249291451168492 has 24 divisors (see below), whose sum is σ = 439216682310000. Its totient is φ = 123801079930176.

The previous prime is 249291451168483. The next prime is 249291451168493. The reversal of 249291451168492 is 294861154192942.

It is not an unprimeable number, because it can be changed into a prime (249291451168493) 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, 4551783 + ... + 22788190.

It is an arithmetic number, because the mean of its divisors is an integer number (18300695096250).

Almost surely, 2^{249291451168492} is an apocalyptic number.

It is an amenable number.

249291451168492 is a deficient number, since it is larger than the sum of its proper divisors (189925231141508).

249291451168492 is a wasteful number, since it uses less digits than its factorization.

249291451168492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27355425 (or 27355423 counting only the distinct ones).

The product of its digits is 89579520, while the sum is 67.

The spelling of 249291451168492 in words is "two hundred forty-nine trillion, two hundred ninety-one billion, four hundred fifty-one million, one hundred sixty-eight thousand, four hundred ninety-two".