61719315087722 has 8 divisors (see below), whose sum is σ = 92614348632036. Its totient is φ = 30847865543712.

The previous prime is 61719315087709. The next prime is 61719315087751. The reversal of 61719315087722 is 22778051391716.

It can be written as a sum of positive squares in 2 ways, for example, as 55288429913161 + 6430885174561 = 7435619^2 + 2535919^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5895993533 + ... + 5896004000.

Almost surely, 2^{61719315087722} is an apocalyptic number.

61719315087722 is a deficient number, since it is larger than the sum of its proper divisors (30895033544314).

61719315087722 is a wasteful number, since it uses less digits than its factorization.

61719315087722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11792000152.

The product of its (nonzero) digits is 8890560, while the sum is 59.

The spelling of 61719315087722 in words is "sixty-one trillion, seven hundred nineteen billion, three hundred fifteen million, eighty-seven thousand, seven hundred twenty-two".