61904419052 has 12 divisors (see below), whose sum is σ = 123808838160. Its totient is φ = 26530465296.

The previous prime is 61904419009. The next prime is 61904419067. The reversal of 61904419052 is 25091440916.

61904419052 is an admirable number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

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, 1105436027 + ... + 1105436082.

It is an arithmetic number, because the mean of its divisors is an integer number (10317403180).

Almost surely, 2^61904419052 is an apocalyptic number.

It is an amenable number.

61904419052 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.

61904419052 is a wasteful number, since it uses less digits than its factorization.

61904419052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210872120 (or 2210872118 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

Adding to 61904419052 its reverse (25091440916), we get a palindrome (86995859968).

The spelling of 61904419052 in words is "sixty-one billion, nine hundred four million, four hundred nineteen thousand, fifty-two".