61070734517 has 12 divisors (see below), whose sum is σ = 66287753280. Its totient is φ = 56238378768.

The previous prime is 61070734489. The next prime is 61070734519. The reversal of 61070734517 is 71543707016.

61070734517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61070734517 - 2⁶ = 61070734453 is a prime.

It is a super-2 number, since 2×61070734517² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61070734519) 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, 360413 + ... + 502034.

It is an arithmetic number, because the mean of its divisors is an integer number (5523979440).

Almost surely, 2^61070734517 is an apocalyptic number.

It is an amenable number.

61070734517 is a deficient number, since it is larger than the sum of its proper divisors (5217018763).

61070734517 is a wasteful number, since it uses less digits than its factorization.

61070734517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862892 (or 862879 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 41.

The spelling of 61070734517 in words is "sixty-one billion, seventy million, seven hundred thirty-four thousand, five hundred seventeen".