34778872397 has 8 divisors (see below), whose sum is σ = 35374785600. Its totient is φ = 34187171040.

The previous prime is 34778872393. The next prime is 34778872417. The reversal of 34778872397 is 79327887743.

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 34778872397 - 2² = 34778872393 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 (34778872393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1036304 + ... + 1069337.

It is an arithmetic number, because the mean of its divisors is an integer number (4421848200).

Almost surely, 2^34778872397 is an apocalyptic number.

It is an amenable number.

34778872397 is a deficient number, since it is larger than the sum of its proper divisors (595913203).

34778872397 is a wasteful number, since it uses less digits than its factorization.

34778872397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105923.

The product of its digits is 99574272, while the sum is 65.

The spelling of 34778872397 in words is "thirty-four billion, seven hundred seventy-eight million, eight hundred seventy-two thousand, three hundred ninety-seven".