61716479970 has 32 divisors (see below), whose sum is σ = 148223452608. Its totient is φ = 16446183488.

The previous prime is 61716479963. The next prime is 61716479989. The reversal of 61716479970 is 7997461716.

It is a super-2 number, since 2×61716479970² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61716479970.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 678009 + ... + 763628.

It is an arithmetic number, because the mean of its divisors is an integer number (4631982894).

Almost surely, 2^61716479970 is an apocalyptic number.

61716479970 is an abundant number, since it is smaller than the sum of its proper divisors (86506972638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61716479970 is a wasteful number, since it uses less digits than its factorization.

61716479970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443074.

The product of its (nonzero) digits is 4000752, while the sum is 57.

The spelling of 61716479970 in words is "sixty-one billion, seven hundred sixteen million, four hundred seventy-nine thousand, nine hundred seventy".