61195730473 has 4 divisors (see below), whose sum is σ = 61199700948. Its totient is φ = 61191760000.

The previous prime is 61195730471. The next prime is 61195730483. The reversal of 61195730473 is 37403759116.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8694257049 + 52501473424 = 93243^2 + 229132^2 .

It is a cyclic number.

It is not a de Polignac number, because 61195730473 - 2¹ = 61195730471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61195730471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1962028 + ... + 1992973.

It is an arithmetic number, because the mean of its divisors is an integer number (15299925237).

Almost surely, 2^61195730473 is an apocalyptic number.

It is an amenable number.

61195730473 is a deficient number, since it is larger than the sum of its proper divisors (3970475).

61195730473 is a wasteful number, since it uses less digits than its factorization.

61195730473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3970474.

The product of its (nonzero) digits is 476280, while the sum is 46.

The spelling of 61195730473 in words is "sixty-one billion, one hundred ninety-five million, seven hundred thirty thousand, four hundred seventy-three".