61948612468 has 12 divisors (see below), whose sum is σ = 108557976100. Its totient is φ = 30932047872.

The previous prime is 61948612343. The next prime is 61948612507. The reversal of 61948612468 is 86421684916.

It can be written as a sum of positive squares in 2 ways, for example, as 55715825764 + 6232786704 = 236042^2 + 78948^2 .

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, 10561293 + ... + 10567156.

Almost surely, 2^61948612468 is an apocalyptic number.

It is an amenable number.

61948612468 is a deficient number, since it is larger than the sum of its proper divisors (46609363632).

61948612468 is a wasteful number, since it uses less digits than its factorization.

61948612468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21129186 (or 21129184 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 55.

The spelling of 61948612468 in words is "sixty-one billion, nine hundred forty-eight million, six hundred twelve thousand, four hundred sixty-eight".