4378774283478 has 128 divisors (see below), whose sum is σ = 11978535075840. Its totient is φ = 1158080885280.

The previous prime is 4378774283473. The next prime is 4378774283503. The reversal of 4378774283478 is 8743824778734.

4378774283478 is a `hidden beast` number, since 4 + 3 + 7 + 8 + 7 + 74 + 2 + 83 + 478 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4378774283473) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7853950 + ... + 8392977.

It is an arithmetic number, because the mean of its divisors is an integer number (93582305280).

Almost surely, 2^{4378774283478} is an apocalyptic number.

4378774283478 is an abundant number, since it is smaller than the sum of its proper divisors (7599760792362).

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

4378774283478 is a wasteful number, since it uses less digits than its factorization.

4378774283478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16246999 (or 16246993 counting only the distinct ones).

The product of its digits is 1416167424, while the sum is 72.

The spelling of 4378774283478 in words is "four trillion, three hundred seventy-eight billion, seven hundred seventy-four million, two hundred eighty-three thousand, four hundred seventy-eight".