36428571787 has 2 divisors, whose sum is σ = 36428571788. Its totient is φ = 36428571786.

The previous prime is 36428571757. The next prime is 36428571847. The reversal of 36428571787 is 78717582463.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36428571787 is a prime.

It is a super-2 number, since 2×36428571787² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36428571757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18214285893 + 18214285894.

It is an arithmetic number, because the mean of its divisors is an integer number (18214285894).

Almost surely, 2^36428571787 is an apocalyptic number.

36428571787 is a deficient number, since it is larger than the sum of its proper divisors (1).

36428571787 is an equidigital number, since it uses as much as digits as its factorization.

36428571787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15805440, while the sum is 58.

The spelling of 36428571787 in words is "thirty-six billion, four hundred twenty-eight million, five hundred seventy-one thousand, seven hundred eighty-seven".