4457978280406 has 32 divisors (see below), whose sum is σ = 7747533138240. Its totient is φ = 1884244985856.

The previous prime is 4457978280403. The next prime is 4457978280499. The reversal of 4457978280406 is 6040828797544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4457978280401) 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, 13673700 + ... + 13995928.

It is an arithmetic number, because the mean of its divisors is an integer number (242110410570).

Almost surely, 2^{4457978280406} is an apocalyptic number.

4457978280406 is a deficient number, since it is larger than the sum of its proper divisors (3289554857834).

4457978280406 is a wasteful number, since it uses less digits than its factorization.

4457978280406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335848.

The product of its (nonzero) digits is 108380160, while the sum is 64.

The spelling of 4457978280406 in words is "four trillion, four hundred fifty-seven billion, nine hundred seventy-eight million, two hundred eighty thousand, four hundred six".