61759952947 has 12 divisors (see below), whose sum is σ = 78374412216. Its totient is φ = 48124638240.

The previous prime is 61759952911. The next prime is 61759952951. The reversal of 61759952947 is 74925995716.

It is not a de Polignac number, because 61759952947 - 2⁷ = 61759952819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61759952047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57290698 + ... + 57291775.

It is an arithmetic number, because the mean of its divisors is an integer number (6531201018).

Almost surely, 2^61759952947 is an apocalyptic number.

61759952947 is a deficient number, since it is larger than the sum of its proper divisors (16614459269).

61759952947 is a wasteful number, since it uses less digits than its factorization.

61759952947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114582498 (or 114582491 counting only the distinct ones).

The product of its digits is 42865200, while the sum is 64.

The spelling of 61759952947 in words is "sixty-one billion, seven hundred fifty-nine million, nine hundred fifty-two thousand, nine hundred forty-seven".