2402129747 has 2 divisors, whose sum is σ = 2402129748. Its totient is φ = 2402129746.

The previous prime is 2402129731. The next prime is 2402129773. The reversal of 2402129747 is 7479212042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2402129747 - 2⁴ = 2402129731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2402129747.

It is not a weakly prime, because it can be changed into another prime (2402129707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1201064873 + 1201064874.

It is an arithmetic number, because the mean of its divisors is an integer number (1201064874).

Almost surely, 2^2402129747 is an apocalyptic number.

2402129747 is a deficient number, since it is larger than the sum of its proper divisors (1).

2402129747 is an equidigital number, since it uses as much as digits as its factorization.

2402129747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 2402129747 is about 49011.5266748548. The cubic root of 2402129747 is about 1339.2618171918.

The spelling of 2402129747 in words is "two billion, four hundred two million, one hundred twenty-nine thousand, seven hundred forty-seven".