61007611317 has 4 divisors (see below), whose sum is σ = 81343481760. Its totient is φ = 40671740876.

The previous prime is 61007611303. The next prime is 61007611339. The reversal of 61007611317 is 71311670016.

61007611317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61007611317 - 2⁶ = 61007611253 is a prime.

It is a super-2 number, since 2×61007611317² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61007611387) 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, 10167935217 + ... + 10167935222.

It is an arithmetic number, because the mean of its divisors is an integer number (20335870440).

Almost surely, 2^61007611317 is an apocalyptic number.

It is an amenable number.

61007611317 is a deficient number, since it is larger than the sum of its proper divisors (20335870443).

61007611317 is a wasteful number, since it uses less digits than its factorization.

61007611317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20335870442.

The product of its (nonzero) digits is 5292, while the sum is 33.

The spelling of 61007611317 in words is "sixty-one billion, seven million, six hundred eleven thousand, three hundred seventeen".