29378880653 has 4 divisors (see below), whose sum is σ = 29664112608. Its totient is φ = 29093648700.

The previous prime is 29378880623. The next prime is 29378880673. The reversal of 29378880653 is 35608887392.

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 a cyclic number.

It is not a de Polignac number, because 29378880653 - 2¹⁶ = 29378815117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29378880592 and 29378880601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29378880623) 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, 142615823 + ... + 142616028.

It is an arithmetic number, because the mean of its divisors is an integer number (7416028152).

Almost surely, 2^29378880653 is an apocalyptic number.

It is an amenable number.

29378880653 is a deficient number, since it is larger than the sum of its proper divisors (285231955).

29378880653 is a wasteful number, since it uses less digits than its factorization.

29378880653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285231954.

The product of its (nonzero) digits is 17418240, while the sum is 59.

The spelling of 29378880653 in words is "twenty-nine billion, three hundred seventy-eight million, eight hundred eighty thousand, six hundred fifty-three".