1249664317993 has 16 divisors (see below), whose sum is σ = 1538074653696. Its totient is φ = 988728511680.

The previous prime is 1249664317981. The next prime is 1249664318041. The reversal of 1249664317993 is 3997134669421.

It is not a de Polignac number, because 1249664317993 - 2⁹ = 1249664317481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1249664317963) 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, 10279080 + ... + 10399942.

It is an arithmetic number, because the mean of its divisors is an integer number (96129665856).

Almost surely, 2^{1249664317993} is an apocalyptic number.

1249664317993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1249664317993 is a deficient number, since it is larger than the sum of its proper divisors (288410335703).

1249664317993 is a wasteful number, since it uses less digits than its factorization.

1249664317993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234504.

The product of its digits is 52907904, while the sum is 64.

The spelling of 1249664317993 in words is "one trillion, two hundred forty-nine billion, six hundred sixty-four million, three hundred seventeen thousand, nine hundred ninety-three".