61875036287 has 4 divisors (see below), whose sum is σ = 64565255280. Its totient is φ = 59184817296.

The previous prime is 61875036281. The next prime is 61875036329. The reversal of 61875036287 is 78263057816.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61875036287 - 2²⁸ = 61606600831 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 (61875036281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1345109462 + ... + 1345109507.

It is an arithmetic number, because the mean of its divisors is an integer number (16141313820).

Almost surely, 2^61875036287 is an apocalyptic number.

61875036287 is a deficient number, since it is larger than the sum of its proper divisors (2690218993).

61875036287 is a wasteful number, since it uses less digits than its factorization.

61875036287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2690218992.

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 61875036287 in words is "sixty-one billion, eight hundred seventy-five million, thirty-six thousand, two hundred eighty-seven".