4557780156946 has 16 divisors (see below), whose sum is σ = 6840851005440. Its totient is φ = 2277496634400.

The previous prime is 4557780156929. The next prime is 4557780156947. The reversal of 4557780156946 is 6496510877554.

It is not an unprimeable number, because it can be changed into a prime (4557780156947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124924335 + ... + 124960813.

It is an arithmetic number, because the mean of its divisors is an integer number (427553187840).

Almost surely, 2^{4557780156946} is an apocalyptic number.

4557780156946 is a deficient number, since it is larger than the sum of its proper divisors (2283070848494).

4557780156946 is a wasteful number, since it uses less digits than its factorization.

4557780156946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72969.

The product of its (nonzero) digits is 254016000, while the sum is 67.

The spelling of 4557780156946 in words is "four trillion, five hundred fifty-seven billion, seven hundred eighty million, one hundred fifty-six thousand, nine hundred forty-six".