61911783358 has 8 divisors (see below), whose sum is σ = 92891726928. Its totient is φ = 30947874384.

The previous prime is 61911783343. The next prime is 61911783371. The reversal of 61911783358 is 85338711916.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3998991 + ... + 4014442.

It is an arithmetic number, because the mean of its divisors is an integer number (11611465866).

Almost surely, 2^61911783358 is an apocalyptic number.

61911783358 is a deficient number, since it is larger than the sum of its proper divisors (30979943570).

61911783358 is a wasteful number, since it uses less digits than its factorization.

61911783358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8017298.

The product of its digits is 1088640, while the sum is 52.

The spelling of 61911783358 in words is "sixty-one billion, nine hundred eleven million, seven hundred eighty-three thousand, three hundred fifty-eight".