61393777098 has 16 divisors (see below), whose sum is σ = 122792076576. Its totient is φ = 20463838640.

The previous prime is 61393777069. The next prime is 61393777099. The reversal of 61393777098 is 89077739316.

It is not an unprimeable number, because it can be changed into a prime (61393777099) by changing a digit.

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, 3013 + ... + 350423.

It is an arithmetic number, because the mean of its divisors is an integer number (7674504786).

Almost surely, 2^61393777098 is an apocalyptic number.

61393777098 is an abundant number, since it is smaller than the sum of its proper divisors (61398299478).

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

61393777098 is a wasteful number, since it uses less digits than its factorization.

61393777098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376869.

The product of its (nonzero) digits is 12002256, while the sum is 60.

The spelling of 61393777098 in words is "sixty-one billion, three hundred ninety-three million, seven hundred seventy-seven thousand, ninety-eight".