1267469254656 has 360 divisors, whose sum is σ = 4131375777144. Its totient is φ = 384046202880.

The previous prime is 1267469254651. The next prime is 1267469254657. The reversal of 1267469254656 is 6564529647621.

It is a happy number.

1267469254656 is a `hidden beast` number, since 1 + 2 + 67 + 469 + 2 + 54 + 65 + 6 = 666.

It is a super-2 number, since 2×1267469254656² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1267469254593 and 1267469254602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1267469254651) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 116779726 + ... + 116790578.

Almost surely, 2^{1267469254656} is an apocalyptic number.

1267469254656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1267469254656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2065687888572).

1267469254656 is an abundant number, since it is smaller than the sum of its proper divisors (2863906522488).

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

1267469254656 is an frugal number, since it uses more digits than its factorization.

1267469254656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10910 (or 10869 counting only the distinct ones).

The product of its digits is 130636800, while the sum is 63.

The spelling of 1267469254656 in words is "one trillion, two hundred sixty-seven billion, four hundred sixty-nine million, two hundred fifty-four thousand, six hundred fifty-six".