78473285660 has 48 divisors (see below), whose sum is σ = 205457333760. Its totient is φ = 24459205440.

The previous prime is 78473285629. The next prime is 78473285663. The reversal of 78473285660 is 6658237487.

It is a junction number, because it is equal to n+sod(n) for n = 78473285596 and 78473285605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78473285663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25476800 + ... + 25479879.

It is an arithmetic number, because the mean of its divisors is an integer number (4280361120).

Almost surely, 2^78473285660 is an apocalyptic number.

78473285660 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

78473285660 is an abundant number, since it is smaller than the sum of its proper divisors (126984048100).

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

78473285660 is a wasteful number, since it uses less digits than its factorization.

78473285660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50956706 (or 50956704 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 78473285660 in words is "seventy-eight billion, four hundred seventy-three million, two hundred eighty-five thousand, six hundred sixty".