62871972385 has 4 divisors (see below), whose sum is σ = 75446366868. Its totient is φ = 50297577904.

The previous prime is 62871972341. The next prime is 62871972407. The reversal of 62871972385 is 58327917826.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58327917826 = 2 ⋅29163958913.

It can be written as a sum of positive squares in 2 ways, for example, as 14099900049 + 48772072336 = 118743^2 + 220844^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-62871972385 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6287197234 + ... + 6287197243.

It is an arithmetic number, because the mean of its divisors is an integer number (18861591717).

Almost surely, 2^62871972385 is an apocalyptic number.

It is an amenable number.

62871972385 is a deficient number, since it is larger than the sum of its proper divisors (12574394483).

62871972385 is a wasteful number, since it uses less digits than its factorization.

62871972385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12574394482.

The product of its digits is 10160640, while the sum is 58.

The spelling of 62871972385 in words is "sixty-two billion, eight hundred seventy-one million, nine hundred seventy-two thousand, three hundred eighty-five".