78490478483950 has 48 divisors (see below), whose sum is σ = 161471722023360. Its totient is φ = 28197826773120.

The previous prime is 78490478483939. The next prime is 78490478483951. The reversal of 78490478483950 is 5938487409487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78490478483951) 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, 1631794630 + ... + 1631842729.

It is an arithmetic number, because the mean of its divisors is an integer number (3363994208820).

Almost surely, 2^{78490478483950} is an apocalyptic number.

78490478483950 is an abundant number, since it is smaller than the sum of its proper divisors (82981243539410).

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

78490478483950 is a wasteful number, since it uses less digits than its factorization.

78490478483950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3263637421 (or 3263637416 counting only the distinct ones).

The product of its (nonzero) digits is 1950842880, while the sum is 76.

The spelling of 78490478483950 in words is "seventy-eight trillion, four hundred ninety billion, four hundred seventy-eight million, four hundred eighty-three thousand, nine hundred fifty".