61929161142 has 8 divisors (see below), whose sum is σ = 123858322296. Its totient is φ = 20643053712.

The previous prime is 61929161117. The next prime is 61929161153. The reversal of 61929161142 is 24116192916.

It is a happy number.

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

61929161142 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 61929161094 and 61929161103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5160763423 + ... + 5160763434.

It is an arithmetic number, because the mean of its divisors is an integer number (15482290287).

Almost surely, 2^61929161142 is an apocalyptic number.

61929161142 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.

61929161142 is a wasteful number, since it uses less digits than its factorization.

61929161142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10321526862.

The product of its digits is 46656, while the sum is 42.

The spelling of 61929161142 in words is "sixty-one billion, nine hundred twenty-nine million, one hundred sixty-one thousand, one hundred forty-two".