71861625120077 has 8 divisors (see below), whose sum is σ = 78701127902880. Its totient is φ = 65209505975280.

The previous prime is 71861625120071. The next prime is 71861625120101. The reversal of 71861625120077 is 77002152616817.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 71861625120077 - 2¹² = 71861625115981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71861625120071) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 46845908699 + ... + 46845910232.

It is an arithmetic number, because the mean of its divisors is an integer number (9837640987860).

Almost surely, 2^{71861625120077} is an apocalyptic number.

It is an amenable number.

71861625120077 is a deficient number, since it is larger than the sum of its proper divisors (6839502782803).

71861625120077 is a wasteful number, since it uses less digits than its factorization.

71861625120077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93691819003.

The product of its (nonzero) digits is 1975680, while the sum is 53.

The spelling of 71861625120077 in words is "seventy-one trillion, eight hundred sixty-one billion, six hundred twenty-five million, one hundred twenty thousand, seventy-seven".