4645587994378 has 16 divisors (see below), whose sum is σ = 7210254458880. Its totient is φ = 2242525798800.

The previous prime is 4645587994367. The next prime is 4645587994381. The reversal of 4645587994378 is 8734997855464.

It is a junction number, because it is equal to n+sod(n) for n = 4645587994298 and 4645587994307.

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, 88963018 + ... + 89015221.

It is an arithmetic number, because the mean of its divisors is an integer number (450640903680).

Almost surely, 2^{4645587994378} is an apocalyptic number.

4645587994378 is a deficient number, since it is larger than the sum of its proper divisors (2564666464502).

4645587994378 is a wasteful number, since it uses less digits than its factorization.

4645587994378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177978693.

The product of its digits is 7315660800, while the sum is 79.

The spelling of 4645587994378 in words is "four trillion, six hundred forty-five billion, five hundred eighty-seven million, nine hundred ninety-four thousand, three hundred seventy-eight".