61111672284 has 48 divisors (see below), whose sum is σ = 162595768608. Its totient is φ = 17697497088.

The previous prime is 61111672243. The next prime is 61111672291. The reversal of 61111672284 is 48227611116.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 11519157 + ... + 11524460.

It is an arithmetic number, because the mean of its divisors is an integer number (3387411846).

Almost surely, 2^61111672284 is an apocalyptic number.

It is an amenable number.

61111672284 is an abundant number, since it is smaller than the sum of its proper divisors (101484096324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61111672284 is a wasteful number, since it uses less digits than its factorization.

61111672284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23043654 (or 23043652 counting only the distinct ones).

The product of its digits is 32256, while the sum is 39.

The spelling of 61111672284 in words is "sixty-one billion, one hundred eleven million, six hundred seventy-two thousand, two hundred eighty-four".