61071102719 has 16 divisors (see below), whose sum is σ = 70550403840. Its totient is φ = 52247141760.

The previous prime is 61071102619. The next prime is 61071102727. The reversal of 61071102719 is 91720117016.

It is a de Polignac number, because none of the positive numbers 2^k-61071102719 is a prime.

It is a super-2 number, since 2×61071102719² (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 (61071102779) 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, 2294912 + ... + 2321370.

It is an arithmetic number, because the mean of its divisors is an integer number (4409400240).

Almost surely, 2^61071102719 is an apocalyptic number.

61071102719 is a deficient number, since it is larger than the sum of its proper divisors (9479301121).

61071102719 is a wasteful number, since it uses less digits than its factorization.

61071102719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38830.

The product of its (nonzero) digits is 5292, while the sum is 35.

The spelling of 61071102719 in words is "sixty-one billion, seventy-one million, one hundred two thousand, seven hundred nineteen".