29908661142 has 8 divisors (see below), whose sum is σ = 59817322296. Its totient is φ = 9969553712.

The previous prime is 29908661131. The next prime is 29908661149. The reversal of 29908661142 is 24116680992.

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

29908661142 is an admirable number.

It is a super-2 number, since 2×29908661142² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 29908661091 and 29908661100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29908661149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2492388423 + ... + 2492388434.

It is an arithmetic number, because the mean of its divisors is an integer number (7477165287).

Almost surely, 2^29908661142 is an apocalyptic number.

29908661142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29908661142 is a wasteful number, since it uses less digits than its factorization.

29908661142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4984776862.

The product of its (nonzero) digits is 373248, while the sum is 48.

The spelling of 29908661142 in words is "twenty-nine billion, nine hundred eight million, six hundred sixty-one thousand, one hundred forty-two".