3642541787 has 2 divisors, whose sum is σ = 3642541788. Its totient is φ = 3642541786.

The previous prime is 3642541751. The next prime is 3642541831. The reversal of 3642541787 is 7871452463.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3642541787 is a prime.

It is a super-2 number, since 2×3642541787² = 26536221340082306738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3642541687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1821270893 + 1821270894.

It is an arithmetic number, because the mean of its divisors is an integer number (1821270894).

Almost surely, 2^3642541787 is an apocalyptic number.

3642541787 is a deficient number, since it is larger than the sum of its proper divisors (1).

3642541787 is an equidigital number, since it uses as much as digits as its factorization.

3642541787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1128960, while the sum is 47.

The square root of 3642541787 is about 60353.4736945604. The cubic root of 3642541787 is about 1538.6323083540.

The spelling of 3642541787 in words is "three billion, six hundred forty-two million, five hundred forty-one thousand, seven hundred eighty-seven".