4640968477 has 2 divisors, whose sum is σ = 4640968478. Its totient is φ = 4640968476.

The previous prime is 4640968471. The next prime is 4640968487. The reversal of 4640968477 is 7748690464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4504288996 + 136679481 = 67114^2 + 11691^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4640968477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4640968471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2320484238 + 2320484239.

It is an arithmetic number, because the mean of its divisors is an integer number (2320484239).

Almost surely, 2^4640968477 is an apocalyptic number.

It is an amenable number.

4640968477 is a deficient number, since it is larger than the sum of its proper divisors (1).

4640968477 is an equidigital number, since it uses as much as digits as its factorization.

4640968477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8128512, while the sum is 55.

The square root of 4640968477 is about 68124.6539587542. The cubic root of 4640968477 is about 1668.0262190200.

The spelling of 4640968477 in words is "four billion, six hundred forty million, nine hundred sixty-eight thousand, four hundred seventy-seven".