56406210378 has 16 divisors (see below), whose sum is σ = 128928480960. Its totient is φ = 16116060096.

The previous prime is 56406210299. The next prime is 56406210391. The reversal of 56406210378 is 87301260465.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1343005009 = 56406210378 / (5 + 6 + 4 + 0 + 6 + 2 + 1 + 0 + 3 + 7 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671502463 + ... + 671502546.

It is an arithmetic number, because the mean of its divisors is an integer number (8058030060).

Almost surely, 2^56406210378 is an apocalyptic number.

56406210378 is an abundant number, since it is smaller than the sum of its proper divisors (72522270582).

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

56406210378 is a wasteful number, since it uses less digits than its factorization.

56406210378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343005021.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 56406210378 in words is "fifty-six billion, four hundred six million, two hundred ten thousand, three hundred seventy-eight".