29997506888877 has 16 divisors (see below), whose sum is σ = 43632888657408. Its totient is φ = 18180244136880.

The previous prime is 29997506888851. The next prime is 29997506888891. The reversal of 29997506888877 is 77888860579992.

It is not a de Polignac number, because 29997506888877 - 2⁶ = 29997506888813 is a prime.

It is a super-2 number, since 2×29997506888877² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29997506888807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9174208 + ... + 12006710.

It is an arithmetic number, because the mean of its divisors is an integer number (2727055541088).

Almost surely, 2^{29997506888877} is an apocalyptic number.

It is an amenable number.

29997506888877 is a deficient number, since it is larger than the sum of its proper divisors (13635381768531).

29997506888877 is a wasteful number, since it uses less digits than its factorization.

29997506888877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3153440.

The product of its (nonzero) digits is 61451550720, while the sum is 93.

The spelling of 29997506888877 in words is "twenty-nine trillion, nine hundred ninety-seven billion, five hundred six million, eight hundred eighty-eight thousand, eight hundred seventy-seven".