29880781051 has 8 divisors (see below), whose sum is σ = 34514699184. Its totient is φ = 25566443520.

The previous prime is 29880781043. The next prime is 29880781079. The reversal of 29880781051 is 15018708892.

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 29880781051 - 2³ = 29880781043 is a prime.

It is a super-2 number, since 2×29880781051² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29880780986 and 29880781004.

It is not an unprimeable number, because it can be changed into a prime (29880781001) 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, 79894950 + ... + 79895323.

It is an arithmetic number, because the mean of its divisors is an integer number (4314337398).

Almost surely, 2^29880781051 is an apocalyptic number.

29880781051 is a deficient number, since it is larger than the sum of its proper divisors (4633918133).

29880781051 is a wasteful number, since it uses less digits than its factorization.

29880781051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159790301.

The product of its (nonzero) digits is 322560, while the sum is 49.

The spelling of 29880781051 in words is "twenty-nine billion, eight hundred eighty million, seven hundred eighty-one thousand, fifty-one".