29912888855 has 32 divisors (see below), whose sum is σ = 38494189440. Its totient is φ = 22259128320.

The previous prime is 29912888791. The next prime is 29912888921. The reversal of 29912888855 is 55888821992.

It is not a de Polignac number, because 29912888855 - 2⁶ = 29912888791 is a prime.

It is a super-2 number, since 2×29912888855² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 29912888791 and 29912888800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1465661 + ... + 1485929.

It is an arithmetic number, because the mean of its divisors is an integer number (1202943420).

Almost surely, 2^29912888855 is an apocalyptic number.

29912888855 is a deficient number, since it is larger than the sum of its proper divisors (8581300585).

29912888855 is a wasteful number, since it uses less digits than its factorization.

29912888855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20651.

The product of its digits is 33177600, while the sum is 65.

The spelling of 29912888855 in words is "twenty-nine billion, nine hundred twelve million, eight hundred eighty-eight thousand, eight hundred fifty-five".