29778673032 has 64 divisors (see below), whose sum is σ = 82740009600. Its totient is φ = 9923647680.

The previous prime is 29778673009. The next prime is 29778673079. The reversal of 29778673032 is 23037687792.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 29778673032.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 932758 + ... + 964154.

It is an arithmetic number, because the mean of its divisors is an integer number (1292812650).

Almost surely, 2^29778673032 is an apocalyptic number.

It is an amenable number.

29778673032 is an abundant number, since it is smaller than the sum of its proper divisors (52961336568).

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

29778673032 is a wasteful number, since it uses less digits than its factorization.

29778673032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35803 (or 35793 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 54.

The spelling of 29778673032 in words is "twenty-nine billion, seven hundred seventy-eight million, six hundred seventy-three thousand, thirty-two".