61887793203 has 16 divisors (see below), whose sum is σ = 91752744960. Its totient is φ = 41228322408.

The previous prime is 61887793193. The next prime is 61887793241. The reversal of 61887793203 is 30239778816.

It is not a de Polignac number, because 61887793203 - 2⁶ = 61887793139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61887793203.

It is not an unprimeable number, because it can be changed into a prime (61887793003) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 801475 + ... + 875292.

It is an arithmetic number, because the mean of its divisors is an integer number (5734546560).

Almost surely, 2^61887793203 is an apocalyptic number.

61887793203 is a deficient number, since it is larger than the sum of its proper divisors (29864951757).

61887793203 is a wasteful number, since it uses less digits than its factorization.

61887793203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678143 (or 1678137 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 61887793203 in words is "sixty-one billion, eight hundred eighty-seven million, seven hundred ninety-three thousand, two hundred three".