4978778510 has 8 divisors (see below), whose sum is σ = 8961801336. Its totient is φ = 1991511400.

The previous prime is 4978778429. The next prime is 4978778557. The reversal of 4978778510 is 158778794.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248938916 + ... + 248938935.

It is an arithmetic number, because the mean of its divisors is an integer number (1120225167).

Almost surely, 2^4978778510 is an apocalyptic number.

4978778510 is a deficient number, since it is larger than the sum of its proper divisors (3983022826).

4978778510 is a wasteful number, since it uses less digits than its factorization.

4978778510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497877858.

The product of its (nonzero) digits is 3951360, while the sum is 56.

The square root of 4978778510 is about 70560.4599616527. The cubic root of 4978778510 is about 1707.5533001290.

The spelling of 4978778510 in words is "four billion, nine hundred seventy-eight million, seven hundred seventy-eight thousand, five hundred ten".