2650423987 has 2 divisors, whose sum is σ = 2650423988. Its totient is φ = 2650423986.

The previous prime is 2650423973. The next prime is 2650423991. The reversal of 2650423987 is 7893240562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2650423987 - 2¹⁹ = 2649899699 is a prime.

It is not a weakly prime, because it can be changed into another prime (2650423387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1325211993 + 1325211994.

It is an arithmetic number, because the mean of its divisors is an integer number (1325211994).

Almost surely, 2^2650423987 is an apocalyptic number.

2650423987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2650423987 is an equidigital number, since it uses as much as digits as its factorization.

2650423987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 2650423987 is about 51482.2686660174. The cubic root of 2650423987 is about 1383.9013015795.

The spelling of 2650423987 in words is "two billion, six hundred fifty million, four hundred twenty-three thousand, nine hundred eighty-seven".