61226037198 has 48 divisors (see below), whose sum is σ = 141657609600. Its totient is φ = 19069283520.

The previous prime is 61226037161. The next prime is 61226037203. The reversal of 61226037198 is 89173062216.

61226037198 is a `hidden beast` number, since 6 + 1 + 22 + 603 + 7 + 19 + 8 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1875613 + ... + 1907976.

It is an arithmetic number, because the mean of its divisors is an integer number (2951200200).

Almost surely, 2^61226037198 is an apocalyptic number.

61226037198 is an abundant number, since it is smaller than the sum of its proper divisors (80431572402).

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

61226037198 is a wasteful number, since it uses less digits than its factorization.

61226037198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3783657 (or 3783654 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 61226037198 in words is "sixty-one billion, two hundred twenty-six million, thirty-seven thousand, one hundred ninety-eight".