1633879248789 has 16 divisors (see below), whose sum is σ = 2251139848704. Its totient is φ = 1053009484800.

The previous prime is 1633879248773. The next prime is 1633879248791. The reversal of 1633879248789 is 9878429783361.

It is not a de Polignac number, because 1633879248789 - 2⁴ = 1633879248773 is a prime.

It is a super-2 number, since 2×1633879248789² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1633879248789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1633879248739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9128892 + ... + 9306149.

It is an arithmetic number, because the mean of its divisors is an integer number (140696240544).

Almost surely, 2^{1633879248789} is an apocalyptic number.

It is an amenable number.

1633879248789 is a deficient number, since it is larger than the sum of its proper divisors (617260599915).

1633879248789 is a wasteful number, since it uses less digits than its factorization.

1633879248789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18436028.

The product of its digits is 877879296, while the sum is 75.

The spelling of 1633879248789 in words is "one trillion, six hundred thirty-three billion, eight hundred seventy-nine million, two hundred forty-eight thousand, seven hundred eighty-nine".