61235890286 has 32 divisors (see below), whose sum is σ = 97998972960. Its totient is φ = 28615182336.

The previous prime is 61235890187. The next prime is 61235890291. The reversal of 61235890286 is 68209853216.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 1127180 + ... + 1180256.

It is an arithmetic number, because the mean of its divisors is an integer number (3062467905).

Almost surely, 2^61235890286 is an apocalyptic number.

61235890286 is a deficient number, since it is larger than the sum of its proper divisors (36763082674).

61235890286 is a wasteful number, since it uses less digits than its factorization.

61235890286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53508.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 61235890286 in words is "sixty-one billion, two hundred thirty-five million, eight hundred ninety thousand, two hundred eighty-six".