4635978751 has 4 divisors (see below), whose sum is σ = 4761275512. Its totient is φ = 4510681992.

The previous prime is 4635978667. The next prime is 4635978779. The reversal of 4635978751 is 1578795364.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4635978751 - 2¹⁹ = 4635454463 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4635978692 and 4635978701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4635973751) 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, 62648325 + ... + 62648398.

It is an arithmetic number, because the mean of its divisors is an integer number (1190318878).

Almost surely, 2^4635978751 is an apocalyptic number.

4635978751 is a deficient number, since it is larger than the sum of its proper divisors (125296761).

4635978751 is a wasteful number, since it uses less digits than its factorization.

4635978751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125296760.

The product of its digits is 6350400, while the sum is 55.

The square root of 4635978751 is about 68088.0220817142. The cubic root of 4635978751 is about 1667.4282132062.

The spelling of 4635978751 in words is "four billion, six hundred thirty-five million, nine hundred seventy-eight thousand, seven hundred fifty-one".