4978771516 has 12 divisors (see below), whose sum is σ = 8713348560. Its totient is φ = 2489243360.

The previous prime is 4978771507. The next prime is 4978771519. The reversal of 4978771516 is 6151778794.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4978771519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103176 + ... + 143536.

It is an arithmetic number, because the mean of its divisors is an integer number (726112380).

Almost surely, 2^4978771516 is an apocalyptic number.

It is an amenable number.

4978771516 is a deficient number, since it is larger than the sum of its proper divisors (3734577044).

4978771516 is a wasteful number, since it uses less digits than its factorization.

4978771516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71204 (or 71202 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 55.

The square root of 4978771516 is about 70560.4104013008. The cubic root of 4978771516 is about 1707.5525005598.

The spelling of 4978771516 in words is "four billion, nine hundred seventy-eight million, seven hundred seventy-one thousand, five hundred sixteen".