1269113392956 has 96 divisors (see below), whose sum is σ = 3162760473600. Its totient is φ = 395226349056.

The previous prime is 1269113392901. The next prime is 1269113392957. The reversal of 1269113392956 is 6592933119621.

It is a super-2 number, since 2×1269113392956² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1269113392896 and 1269113392905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1269113392957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1769470 + ... + 2381018.

It is an arithmetic number, because the mean of its divisors is an integer number (32945421600).

Almost surely, 2^{1269113392956} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1269113392956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1581380236800).

1269113392956 is an abundant number, since it is smaller than the sum of its proper divisors (1893647080644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1269113392956 is a wasteful number, since it uses less digits than its factorization.

1269113392956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611755 (or 611753 counting only the distinct ones).

The product of its digits is 4723920, while the sum is 57.

The spelling of 1269113392956 in words is "one trillion, two hundred sixty-nine billion, one hundred thirteen million, three hundred ninety-two thousand, nine hundred fifty-six".