269241920640 has 1536 divisors, whose sum is σ = 1216007769600. Its totient is φ = 53704949760.

The previous prime is 269241920639. The next prime is 269241920677. The reversal of 269241920640 is 46029142962.

269241920640 is a `hidden beast` number, since 26 + 9 + 2 + 419 + 206 + 4 + 0 = 666.

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, 1556311594 + ... + 1556311766.

It is an arithmetic number, because the mean of its divisors is an integer number (791671725).

Almost surely, 2^269241920640 is an apocalyptic number.

269241920640 is a gapful number since it is divisible by the number (20) 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 269241920640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (608003884800).

269241920640 is an abundant number, since it is smaller than the sum of its proper divisors (946765848960).

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

269241920640 is a wasteful number, since it uses less digits than its factorization.

269241920640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 269241920640 in words is "two hundred sixty-nine billion, two hundred forty-one million, nine hundred twenty thousand, six hundred forty".