1269064670400 has 1344 divisors, whose sum is σ = 4963568025600. Its totient is φ = 314735984640.

The previous prime is 1269064670359. The next prime is 1269064670411. The reversal of 1269064670400 is 40764609621.

1269064670400 is a `hidden beast` number, since 126 + 9 + 0 + 64 + 67 + 0 + 400 = 666.

It is a super-2 number, since 2×1269064670400² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 9992635137 + ... + 9992635263.

Almost surely, 2^{1269064670400} is an apocalyptic number.

1269064670400 is a gapful number since it is divisible by the number (10) 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 1269064670400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2481784012800).

1269064670400 is an abundant number, since it is smaller than the sum of its proper divisors (3694503355200).

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

1269064670400 is a wasteful number, since it uses less digits than its factorization.

1269064670400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 1269064670400 in words is "one trillion, two hundred sixty-nine billion, sixty-four million, six hundred seventy thousand, four hundred".