1225949319757 has 8 divisors (see below), whose sum is σ = 1239984438336. Its totient is φ = 1211942700672.

The previous prime is 1225949319743. The next prime is 1225949319787. The reversal of 1225949319757 is 7579139495221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1225949319757 - 2³⁵ = 1191589581389 is a prime.

It is a super-2 number, since 2×1225949319757² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225949319737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7038343 + ... + 7210420.

It is an arithmetic number, because the mean of its divisors is an integer number (154998054792).

Almost surely, 2^{1225949319757} is an apocalyptic number.

It is an amenable number.

1225949319757 is a deficient number, since it is larger than the sum of its proper divisors (14035118579).

1225949319757 is an equidigital number, since it uses as much as digits as its factorization.

1225949319757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14249747.

The product of its digits is 42865200, while the sum is 64.

The spelling of 1225949319757 in words is "one trillion, two hundred twenty-five billion, nine hundred forty-nine million, three hundred nineteen thousand, seven hundred fifty-seven".