8572461637 has 2 divisors, whose sum is σ = 8572461638. Its totient is φ = 8572461636.

The previous prime is 8572461563. The next prime is 8572461641. The reversal of 8572461637 is 7361642758.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5099245281 + 3473216356 = 71409^2 + 58934^2 .

It is a cyclic number.

It is not a de Polignac number, because 8572461637 - 2²⁷ = 8438243909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8572467637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4286230818 + 4286230819.

It is an arithmetic number, because the mean of its divisors is an integer number (4286230819).

Almost surely, 2^8572461637 is an apocalyptic number.

It is an amenable number.

8572461637 is a deficient number, since it is larger than the sum of its proper divisors (1).

8572461637 is an equidigital number, since it uses as much as digits as its factorization.

8572461637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 49.

The square root of 8572461637 is about 92587.5890009023. The cubic root of 8572461637 is about 2046.6104316897.

The spelling of 8572461637 in words is "eight billion, five hundred seventy-two million, four hundred sixty-one thousand, six hundred thirty-seven".