2071577987 has 2 divisors, whose sum is σ = 2071577988. Its totient is φ = 2071577986.

The previous prime is 2071577983. The next prime is 2071578077. The reversal of 2071577987 is 7897751702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2071577987 - 2² = 2071577983 is a prime.

It is not a weakly prime, because it can be changed into another prime (2071577983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1035788993 + 1035788994.

It is an arithmetic number, because the mean of its divisors is an integer number (1035788994).

Almost surely, 2^2071577987 is an apocalyptic number.

2071577987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2071577987 is an equidigital number, since it uses as much as digits as its factorization.

2071577987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728720, while the sum is 53.

The square root of 2071577987 is about 45514.5909242300. The cubic root of 2071577987 is about 1274.7756595164.

The spelling of 2071577987 in words is "two billion, seventy-one million, five hundred seventy-seven thousand, nine hundred eighty-seven".