61672380556895 has 8 divisors (see below), whose sum is σ = 74007866627520. Its totient is φ = 49337231139360.

The previous prime is 61672380556889. The next prime is 61672380556931. The reversal of 61672380556895 is 59865508327616.

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

It is not a de Polignac number, because 61672380556895 - 2⁴ = 61672380556879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83760071 + ... + 84493160.

It is an arithmetic number, because the mean of its divisors is an integer number (9250983328440).

Almost surely, 2^{61672380556895} is an apocalyptic number.

61672380556895 is a deficient number, since it is larger than the sum of its proper divisors (12335486070625).

61672380556895 is a wasteful number, since it uses less digits than its factorization.

61672380556895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168326545.

The product of its (nonzero) digits is 653184000, while the sum is 71.

The spelling of 61672380556895 in words is "sixty-one trillion, six hundred seventy-two billion, three hundred eighty million, five hundred fifty-six thousand, eight hundred ninety-five".