61803336078 has 48 divisors (see below), whose sum is σ = 153769075200. Its totient is φ = 17742583440.

The previous prime is 61803336071. The next prime is 61803336083. The reversal of 61803336078 is 87063330816.

61803336078 is a `hidden beast` number, since 6 + 1 + 8 + 0 + 3 + 33 + 607 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61803336071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8210398 + ... + 8217921.

It is an arithmetic number, because the mean of its divisors is an integer number (3203522400).

Almost surely, 2^61803336078 is an apocalyptic number.

61803336078 is an abundant number, since it is smaller than the sum of its proper divisors (91965739122).

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

61803336078 is a wasteful number, since it uses less digits than its factorization.

61803336078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16428357 (or 16428354 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 61803336078 in words is "sixty-one billion, eight hundred three million, three hundred thirty-six thousand, seventy-eight".