29978619117 has 8 divisors (see below), whose sum is σ = 40014522240. Its totient is φ = 19964231040.

The previous prime is 29978619103. The next prime is 29978619133. The reversal of 29978619117 is 71191687992.

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

It is not a de Polignac number, because 29978619117 - 2⁶ = 29978619053 is a prime.

It is a super-3 number, since 3×29978619117³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29978619137) 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, 5375509 + ... + 5381082.

It is an arithmetic number, because the mean of its divisors is an integer number (5001815280).

Almost surely, 2^29978619117 is an apocalyptic number.

It is an amenable number.

29978619117 is a deficient number, since it is larger than the sum of its proper divisors (10035903123).

29978619117 is a wasteful number, since it uses less digits than its factorization.

29978619117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10757523.

The product of its digits is 3429216, while the sum is 60.

The spelling of 29978619117 in words is "twenty-nine billion, nine hundred seventy-eight million, six hundred nineteen thousand, one hundred seventeen".