50778205404408 has 48 divisors (see below), whose sum is σ = 142266523768200. Its totient is φ = 16342410934080.

The previous prime is 50778205404359. The next prime is 50778205404503. The reversal of 50778205404408 is 80440450287705.

50778205404408 is a `hidden beast` number, since 5 + 0 + 7 + 78 + 20 + 540 + 4 + 4 + 0 + 8 = 666.

It is a super-2 number, since 2×50778205404408² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12159529858 + ... + 12159534033.

Almost surely, 2^{50778205404408} is an apocalyptic number.

50778205404408 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

50778205404408 is an abundant number, since it is smaller than the sum of its proper divisors (91488318363792).

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

50778205404408 is a wasteful number, since it uses less digits than its factorization.

50778205404408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24319063932 (or 24319063925 counting only the distinct ones).

The product of its (nonzero) digits is 10035200, while the sum is 54.

The spelling of 50778205404408 in words is "fifty trillion, seven hundred seventy-eight billion, two hundred five million, four hundred four thousand, four hundred eight".