61929161349 has 16 divisors (see below), whose sum is σ = 90652537920. Its totient is φ = 37293759360.

The previous prime is 61929161341. The next prime is 61929161353. The reversal of 61929161349 is 94316192916.

It is not a de Polignac number, because 61929161349 - 2³ = 61929161341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61929161341) 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, 5971384 + ... + 5981745.

It is an arithmetic number, because the mean of its divisors is an integer number (5665783620).

Almost surely, 2^61929161349 is an apocalyptic number.

It is an amenable number.

61929161349 is a deficient number, since it is larger than the sum of its proper divisors (28723376571).

61929161349 is a wasteful number, since it uses less digits than its factorization.

61929161349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11953300.

The product of its digits is 629856, while the sum is 51.

The spelling of 61929161349 in words is "sixty-one billion, nine hundred twenty-nine million, one hundred sixty-one thousand, three hundred forty-nine".