1634424833361 has 4 divisors (see below), whose sum is σ = 2179233111152. Its totient is φ = 1089616555572.

The previous prime is 1634424833357. The next prime is 1634424833411. The reversal of 1634424833361 is 1633384244361.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1634424833361 - 2² = 1634424833357 is a prime.

It is a super-3 number, since 3×1634424833361³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1634424833361.

It is not an unprimeable number, because it can be changed into a prime (1634424833341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272404138891 + ... + 272404138896.

It is an arithmetic number, because the mean of its divisors is an integer number (544808277788).

Almost surely, 2^{1634424833361} is an apocalyptic number.

It is an amenable number.

1634424833361 is a deficient number, since it is larger than the sum of its proper divisors (544808277791).

1634424833361 is an equidigital number, since it uses as much as digits as its factorization.

1634424833361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544808277790.

The product of its digits is 2985984, while the sum is 48.

The spelling of 1634424833361 in words is "one trillion, six hundred thirty-four billion, four hundred twenty-four million, eight hundred thirty-three thousand, three hundred sixty-one".