243454653552 has 160 divisors (see below), whose sum is σ = 697985040384. Its totient is φ = 72507052800.

The previous prime is 243454653521. The next prime is 243454653587. The reversal of 243454653552 is 255356454342.

It is a super-2 number, since 2×243454653552² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7158027 + ... + 7191957.

Almost surely, 2^243454653552 is an apocalyptic number.

243454653552 is a gapful number since it is divisible by the number (22) 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 243454653552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348992520192).

243454653552 is an abundant number, since it is smaller than the sum of its proper divisors (454530386832).

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

243454653552 is a wasteful number, since it uses less digits than its factorization.

243454653552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34187 (or 34181 counting only the distinct ones).

The product of its digits is 8640000, while the sum is 48.

The spelling of 243454653552 in words is "two hundred forty-three billion, four hundred fifty-four million, six hundred fifty-three thousand, five hundred fifty-two".