61907045641 has 8 divisors (see below), whose sum is σ = 70789564544. Its totient is φ = 53034190560.

The previous prime is 61907045609. The next prime is 61907045647. The reversal of 61907045641 is 14654070916.

61907045641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61907045641 - 2⁵ = 61907045609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61907045647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2402220 + ... + 2427853.

It is an arithmetic number, because the mean of its divisors is an integer number (8848695568).

Almost surely, 2^61907045641 is an apocalyptic number.

It is an amenable number.

61907045641 is a deficient number, since it is larger than the sum of its proper divisors (8882518903).

61907045641 is a wasteful number, since it uses less digits than its factorization.

61907045641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4831911.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 61907045641 in words is "sixty-one billion, nine hundred seven million, forty-five thousand, six hundred forty-one".