61787845922 has 16 divisors (see below), whose sum is σ = 101124846144. Its totient is φ = 28080534000.

The previous prime is 61787845919. The next prime is 61787845937. The reversal of 61787845922 is 22954878716.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110654 + ... + 368537.

It is an arithmetic number, because the mean of its divisors is an integer number (6320302884).

Almost surely, 2^61787845922 is an apocalyptic number.

61787845922 is a deficient number, since it is larger than the sum of its proper divisors (39337000222).

61787845922 is a wasteful number, since it uses less digits than its factorization.

61787845922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485065.

The product of its digits is 13547520, while the sum is 59.

It can be divided in two parts, 61787 and 845922, that added together give a palindrome (907709).

The spelling of 61787845922 in words is "sixty-one billion, seven hundred eighty-seven million, eight hundred forty-five thousand, nine hundred twenty-two".