61929161418 has 8 divisors (see below), whose sum is σ = 123858322848. Its totient is φ = 20643053804.

The previous prime is 61929161407. The next prime is 61929161423. The reversal of 61929161418 is 81416192916.

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

61929161418 is an admirable 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, 5160763446 + ... + 5160763457.

It is an arithmetic number, because the mean of its divisors is an integer number (15482290356).

Almost surely, 2^61929161418 is an apocalyptic number.

61929161418 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.

61929161418 is a wasteful number, since it uses less digits than its factorization.

61929161418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10321526908.

The product of its digits is 186624, while the sum is 48.

The spelling of 61929161418 in words is "sixty-one billion, nine hundred twenty-nine million, one hundred sixty-one thousand, four hundred eighteen".