29420978797 has 8 divisors (see below), whose sum is σ = 33719230656. Its totient is φ = 25146540672.

The previous prime is 29420978789. The next prime is 29420978801. The reversal of 29420978797 is 79787902492.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29420978797 - 2³ = 29420978789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29420978707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5950783 + ... + 5955724.

It is an arithmetic number, because the mean of its divisors is an integer number (4214903832).

Almost surely, 2^29420978797 is an apocalyptic number.

It is an amenable number.

29420978797 is a deficient number, since it is larger than the sum of its proper divisors (4298251859).

29420978797 is a wasteful number, since it uses less digits than its factorization.

29420978797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11906867.

The product of its (nonzero) digits is 32006016, while the sum is 64.

The spelling of 29420978797 in words is "twenty-nine billion, four hundred twenty million, nine hundred seventy-eight thousand, seven hundred ninety-seven".