61304370785 has 16 divisors (see below), whose sum is σ = 85452840192. Its totient is φ = 41348145600.

The previous prime is 61304370781. The next prime is 61304370797. The reversal of 61304370785 is 58707340316.

It is not a de Polignac number, because 61304370785 - 2² = 61304370781 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61304370781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14354861 + ... + 14359130.

It is an arithmetic number, because the mean of its divisors is an integer number (5340802512).

Almost surely, 2^61304370785 is an apocalyptic number.

It is an amenable number.

61304370785 is a deficient number, since it is larger than the sum of its proper divisors (24148469407).

61304370785 is a wasteful number, since it uses less digits than its factorization.

61304370785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28714064.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 61304370785 in words is "sixty-one billion, three hundred four million, three hundred seventy thousand, seven hundred eighty-five".