997446149208741 has 32 divisors (see below), whose sum is σ = 1384300342149120. Its totient is φ = 638436431799936.

The previous prime is 997446149208731. The next prime is 997446149208799. The reversal of 997446149208741 is 147802941644799.

It is not a de Polignac number, because 997446149208741 - 2⁴¹ = 995247125953189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997446149208731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 311335861 + ... + 314523306.

It is an arithmetic number, because the mean of its divisors is an integer number (43259385692160).

Almost surely, 2^{997446149208741} is an apocalyptic number.

It is an amenable number.

997446149208741 is a deficient number, since it is larger than the sum of its proper divisors (386854192940379).

997446149208741 is a wasteful number, since it uses less digits than its factorization.

997446149208741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625859433.

The product of its (nonzero) digits is 877879296, while the sum is 75.

The spelling of 997446149208741 in words is "nine hundred ninety-seven trillion, four hundred forty-six billion, one hundred forty-nine million, two hundred eight thousand, seven hundred forty-one".