4978924751 has 2 divisors, whose sum is σ = 4978924752. Its totient is φ = 4978924750.

The previous prime is 4978924697. The next prime is 4978924823. The reversal of 4978924751 is 1574298794.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4978924751 - 2¹⁰ = 4978923727 is a prime.

It is a super-2 number, since 2×4978924751² = 49579383352240824002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4978923751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2489462375 + 2489462376.

It is an arithmetic number, because the mean of its divisors is an integer number (2489462376).

Almost surely, 2^4978924751 is an apocalyptic number.

4978924751 is a deficient number, since it is larger than the sum of its proper divisors (1).

4978924751 is an equidigital number, since it uses as much as digits as its factorization.

4978924751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5080320, while the sum is 56.

The square root of 4978924751 is about 70561.4962355533. The cubic root of 4978924751 is about 1707.5700185440.

The spelling of 4978924751 in words is "four billion, nine hundred seventy-eight million, nine hundred twenty-four thousand, seven hundred fifty-one".