5111010499978 has 8 divisors (see below), whose sum is σ = 7666592598468. Its totient is φ = 2555479633824.

The previous prime is 5111010499967. The next prime is 5111010499979. The reversal of 5111010499978 is 8799940101115.

It can be written as a sum of positive squares in 2 ways, for example, as 3685797144649 + 1425213355329 = 1919843^2 + 1193823^2 .

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

It is a super-3 number, since 3×5111010499978³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (5111010499979) 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, 12557701 + ... + 12958312.

Almost surely, 2^{5111010499978} is an apocalyptic number.

5111010499978 is a deficient number, since it is larger than the sum of its proper divisors (2555582098490).

5111010499978 is a wasteful number, since it uses less digits than its factorization.

5111010499978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25616168.

The product of its (nonzero) digits is 816480, while the sum is 55.

The spelling of 5111010499978 in words is "five trillion, one hundred eleven billion, ten million, four hundred ninety-nine thousand, nine hundred seventy-eight".