61011695450 has 24 divisors (see below), whose sum is σ = 115036304988. Its totient is φ = 24070366080.

The previous prime is 61011695449. The next prime is 61011695461. The reversal of 61011695450 is 5459611016.

61011695450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 5918686489 + 55093008961 = 76933^2 + 234719^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8354117 + ... + 8361416.

Almost surely, 2^61011695450 is an apocalyptic number.

61011695450 is a deficient number, since it is larger than the sum of its proper divisors (54024609538).

61011695450 is a wasteful number, since it uses less digits than its factorization.

61011695450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16715618 (or 16715613 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 61011695450 in words is "sixty-one billion, eleven million, six hundred ninety-five thousand, four hundred fifty".