56178263820 has 144 divisors (see below), whose sum is σ = 183462064128. Its totient is φ = 12806962560.

The previous prime is 56178263759. The next prime is 56178263831. The reversal of 56178263820 is 2836287165.

It is a self number, because there is not a number n which added to its sum of digits gives 56178263820.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1101075 + ... + 1150965.

It is an arithmetic number, because the mean of its divisors is an integer number (1274042112).

Almost surely, 2^56178263820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56178263820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91731032064).

56178263820 is an abundant number, since it is smaller than the sum of its proper divisors (127283800308).

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

56178263820 is a wasteful number, since it uses less digits than its factorization.

56178263820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50300 (or 50291 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 56178263820 in words is "fifty-six billion, one hundred seventy-eight million, two hundred sixty-three thousand, eight hundred twenty".