61951049192 has 8 divisors (see below), whose sum is σ = 116158217250. Its totient is φ = 30975524592.

The previous prime is 61951049131. The next prime is 61951049297. The reversal of 61951049192 is 29194015916.

It can be written as a sum of positive squares in only one way, i.e., 55674290116 + 6276759076 = 235954^2 + 79226^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3871940567 + ... + 3871940582.

Almost surely, 2^61951049192 is an apocalyptic number.

It is an amenable number.

61951049192 is a deficient number, since it is larger than the sum of its proper divisors (54207168058).

61951049192 is a wasteful number, since it uses less digits than its factorization.

61951049192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7743881155 (or 7743881151 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 47.

The spelling of 61951049192 in words is "sixty-one billion, nine hundred fifty-one million, forty-nine thousand, one hundred ninety-two".